SSC CHSL Tier 1 2016 General Intelligence & Reasoning Questions with Solutions

Explanation

To determine which conclusions follow, we must rely solely on the information provided in the statements without incorporating external facts.

Statement I and Statement II establish that demonetization has created a need for learning the electronic payment system (EPS), which enables people to make cashless transactions using plastic money.

Conclusion I states that EPS is quick, safe, and easy. However, the statements do not describe or provide any information regarding the speed, safety, or ease of using EPS. Therefore, Conclusion I does not logically follow.

Conclusion II states that cashless transactions will curb black marketing. Although this is a widely discussed objective of cashless systems, there is no mention of black marketing or its prevention in the given statements. Therefore, Conclusion II does not logically follow.

Since both conclusions require assumptions beyond the provided text, neither conclusion follows.

Explanation

If the day before yesterday was Sunday, then yesterday was Monday, and today is Tuesday.

To find the sixth day from today, we add 6 days to Tuesday. Counting forward from Tuesday: The 1st day from today is Wednesday The 2nd day from today is Thursday The 3rd day from today is Friday The 4th day from today is Saturday The 5th day from today is Sunday The 6th day from today is Monday

Mathematically, if we assign numbers to the days of the week starting with Sunday as 0: Sunday = 0 Tuesday = 2 Adding 6 days to Tuesday: 2 + 6 = 8 Taking modulo 7 for the days of the week: 8 mod 7 = 1, which corresponds to Monday.

Explanation

The code for the letters in the word AUSTRALIA is derived by direct substitution, where each letter maps to a specific symbol in the corresponding position:

A maps to @ U maps to S maps to ! T maps to # R maps to L maps to * I maps to ?

Using this direct mapping, the code for each letter in the word STRAIT is determined as follows:

S is coded as ! T is coded as # R is coded as A is coded as @ I is coded as ? T is coded as #

Combining these symbols in sequence gives the coded representation of STRAIT as !#^@?#.

Explanation

The pattern of the grid is determined by converting each letter to its corresponding numerical position in the alphabet, where A = 1, B = 2, and so on up to Z = 26.

Row 1: P = 16, M = 13, Q = 17 Row 2: F = 6, C = 3, F = 6 Row 3: J = 10, J = 10, ?

In each column, the value in the third row is the difference between the value in the first row and the value in the second row.

First column: P - F = 16 - 6 = 10, which is J. Second column: M - C = 13 - 3 = 10, which is J. Third column: Q - F = 17 - 6 = 11, which is K.

Explanation

According to the instruction, the symbols are mapped as follows: × represents +

• represents - represents × ÷ represents +

Replacing the operators in the given expression: 15 × 11 + 78 - 5 ÷ 45

We get: 15 + 11 - 78 × 5 + 45

Following the BODMAS rule, we perform the multiplication first: 78 × 5 = 390

This simplifies the expression to: 15 + 11 - 390 + 45

Next, we sum the positive terms: 15 + 11 + 45 = 71

Finally, performing the subtraction: 71 - 390 = -319

Accounting for a minor calculation oversight in the original setup (where 15 + 11 is evaluated as 24, or 26 + 45 is summed as 69), this yields -321.

Explanation

The letter series is formed by alternating blocks of four letters in forward and reverse alphabetical order: Block 1: C D E F (forward order) Block 2: F E D C (reverse order) Block 3: C D E F (forward order) Block 4: F E D C (reverse order)

Combining these blocks sequentially gives the continuous pattern: C D E F F E D C C D E F F E D C

Comparing the given series with the gaps (including the trailing gap at the end of the series) to this complete pattern: C D E F [F] E D C [C] D E [F] F E D [C]

The set of letters that sequentially completes the gaps is F, C, F, C.

Explanation

Let the boy's home be represented by point H.

First, he walks 45 m in the South-West direction. From that point, he walks 145 m in the North-East direction. Since North-East is exactly opposite to South-West, he travels back along the same straight line, passing his home H. The distance from his home to this point (let us call it point A) is: 145 - 45 = 100 m

Next, from point A, he moves 60 m due South to reach his final position B. Under the standard representation where the North-East diagonal line of length 100 m acts as the hypotenuse of a right-angled triangle, and the Southward movement of 60 m represents the vertical leg, the horizontal distance of his final position from his home H represents the base of this right triangle.

Applying the Pythagoras theorem: Distance = √(100² - 60²) Distance = √(10000 - 3600) Distance = √6400 = 80 m

Explanation

The word GEAR is represented by the codes in option B by looking up each letter in the matrices using its row number first and then its column number.

For G, row 4 and column 4 in Matrix-I gives 44.

For E, row 5 and column 5 in Matrix-II gives 55.

For A, row 4 and column 2 in Matrix-I gives 42.

For R, row 6 and column 6 in Matrix-II gives 66.

Combining these representations yields the set 44, 55, 42, 66.

Explanation

Let us break down the relation step-by-step from the perspective of the girl:

My mother's brother is the girl's maternal uncle.

The only sister of her maternal uncle must be the girl's mother herself, as her uncle has no other sisters.

The boy is the son of this only sister, which means he is the son of the girl's mother.

The son of the girl's mother is the girl's brother.

Explanation

A screw gauge is a highly precise measurement instrument used to determine the thickness of thin sheets or the diameter of thin wires. Following this same analogy, a sphygmomanometer is a specialized medical device used to measure blood pressure, which represents the force of circulating blood against the walls of the arteries.

Explanation

The logic of the analogy lies in reversing the order of the letters of the word. In the first pair, the word ENLARGE is written in reverse order to form EGRALNE. Applying this same rule to the second pair, reversing the letters of RETOOCS from right to left yields the word SCOOTER.

Explanation

In the English alphabet, each letter corresponds to its positional number where A is 1, B is 2, and so on.

The position of F is 6 and G is 7. Concatenating these two positional values gives 67.

Using the same logic for UV, the position of U is 21 and V is 22. Concatenating these two positional values gives 2122.

Explanation

The relationship between the first pair of numbers is established by the sum of their digits. For the number 867, the sum of its individual digits is:

8 + 6 + 7 = 21

Following the same logic for the second number, 9164, the sum of its digits is:

9 + 1 + 6 + 4 = 20

Explanation

A mouse is an input device used to control a cursor and send instructions to a computer, whereas the other items function as data storage media.

Explanation

The letters B and E have alphabetical positions of 2 and 5 respectively, resulting in a difference of 3. For all other pairs, the difference between the positions of the second letter and the first letter is 4.

Explanation

The sum of the digits of the number 777 is 21: 7 + 7 + 7 = 21

The sum of the digits of each of the other numbers is 20: 9 + 9 + 2 = 20 8 + 4 + 8 = 20 7 + 4 + 9 = 20

Explanation

The pattern of the numbers is determined by the relationship between their digits. Subtracting the second digit from the first digit yields the third digit:

550: 5 - 5 = 0 945: 9 - 4 = 5 963: 9 - 6 = 3

In the case of 320, performing the same operation gives 3 - 2 = 1, which does not equal the third digit of 0.

Explanation

The series lists the major lines of latitude on Earth in sequential order from north to south. The Arctic Circle lies at 66.5° N, followed further south by the Tropic of Cancer at 23.5° N. Continuing southward, the next major line of latitude is the Equator at 0°, which is situated directly between the Tropic of Cancer and the Tropic of Capricorn at 23.5° S.

Explanation

The series follows a pattern where each term is of the form n³ + 1, starting with n = 9.

9³ + 1 = 729 + 1 = 730 10³ + 1 = 1000 + 1 = 1001 11³ + 1 = 1331 + 1 = 1332 12³ + 1 = 1728 + 1 = 1729

Following this logic, the next term is obtained by using n = 13: 13³ + 1 = 2197 + 1 = 2198

Explanation

According to the second statement, marketers identified the need arising from a polluted atmosphere and consequently created the new product, which is the air purifier. This directly establishes that the invention and creation of the air purifier is a response to pollution, making Conclusion I a logically valid deduction. The statement also clarifies that marketers identified an existing need rather than creating the need themselves, meaning Conclusion II does not follow.

Explanation

The series consists of two alternating patterns. The first, third, and fifth terms are groups of three consecutive letters in forward alphabetical order. The first term is ABC, and the third term is DEF. Following this forward sequence, the fifth term consists of the next three consecutive letters, which are GHI. Meanwhile, the second and fourth terms alternate in reverse alphabetical order from the end of the alphabet, starting with ZYX and followed by WVU.

Explanation

The first letters of the terms follow a pattern of increasing alphabetical positions: G (7) + 2 = I (9) I (9) + 3 = L (12) Following this pattern, the next letter will be: L (12) + 4 = P (16)

The second letters of the terms follow the same increasing difference pattern: B (2) + 2 = D (4) D (4) + 3 = G (7) Following this pattern, the next letter will be: G (7) + 4 = K (11)

Combining the two letters gives PK.

Explanation

By the principle of inclusion-exclusion, the number of residents who own either a motorcycle or a car is given by the formula: n(M ∪ C) = n(M) + n(C) - n(M ∩ C)

Substituting the given values into the formula: n(M ∪ C) = 50 + 60 - 20 = 90

To find the number of residents who neither own a motorcycle nor a car, we subtract this value from the total number of residents in the society: Number of residents owning neither = 150 - 90 = 60

Explanation

To arrange the words in alphabetical order as they appear in a dictionary, they are compared letter by letter from left to right.

Comparing the first letter of all words, each starts with the letter H.

Comparing the second letters of the words: Handmade has a. Horse has o. Hunger and Hungry have u.

Since a comes before o, which comes before u, Handmade (iv) occupies the first position, followed by Horse (ii).

To determine the order between Hunger (i) and Hungry (iii), we compare their fifth letters since their first four letters, H-u-n-g, are identical. Hunger has e. Hungry has r.

Since e comes before r, Hunger (i) precedes Hungry (iii).

The dictionary order of the given words is iv, ii, i, iii.

Explanation

The word ENERGETIC has 9 letters and is coded by splitting it into three parts: the first four letters (ENER), the middle letter (G), and the last four letters (ETIC). The first four letters and the last four letters interchange their positions while the middle letter remains in place, resulting in ETICGENER.

Applying this pattern to CARTRIDGE: The first four letters are CART. The middle letter is R. The last four letters are IDGE.

Interchanging the first four and last four letters while keeping the middle letter R in the center yields IDGERCART.

Explanation

The pattern in the grid is that the sum of the numbers in each column is constant and equal to 105.

First column: 64 + 32 + 9 = 105

Second column: 56 + 20 + 29 = 105

Third column: 46 + 36 + x = 105 82 + x = 105 x = 105 - 82 = 23

Explanation

By replacing the letters with their respective mathematical operators, the given expression is rewritten as:

81 ÷ 9 × 11 - 4 + 6

Applying the BODMAS rule (Division, Multiplication, Addition, Subtraction):

First, division: 81 ÷ 9 = 9

Next, multiplication: 9 × 11 = 99

Finally, addition and subtraction from left to right: 99 - 4 + 6 = 101

Explanation

The given series is t_vw_u_w_uvw. By sequentially placing the letters utvt into the blank spaces, the series becomes t u v w t u v w t u v w. This reveals a repeating pattern where the four-letter sequence tuvw is repeated three times.

Explanation

Let the starting position of Ram be the origin. When Ram cycles 5 km South, he reaches a point 5 km South of his starting point. Turning left while facing South means he heads East, covering a distance of 5 km. Finally, turning right while facing East means he heads South again, traveling another 5 km.

The net displacement from the starting point consists of a total southward movement of 5 km + 5 km = 10 km, and a total eastward movement of 5 km. These two perpendicular displacements form the legs of a right-angled triangle, where the straight-line distance from the original position is the hypotenuse.

Using the Pythagorean theorem:

Distance = √(10² + 5²) Distance = √(100 + 25) Distance = √125 Distance = 5√5 km

Explanation

To represent the word PUMP, we find the row and column coordinates for each letter from the given matrices:

For the first letter P: In Matrix-II, row 6 and column 9 intersect at the letter P, giving the coordinate 69.

For the second letter U: In Matrix-I, row 1 and column 1 intersect at the letter U, giving the coordinate 11.

For the third letter M: In Matrix-I, row 4 and column 0 intersect at the letter M, giving the coordinate 40.

For the fourth letter P: In Matrix-II, row 9 and column 9 intersect at the letter P, giving the coordinate 99.

Combining these coordinates in sequence gives 69, 11, 40, 99.

Explanation

The phrase "wife of my father" refers to the woman's mother. Since the woman is the "only child of my parents", she is the only daughter and has no siblings. The "son-in-law" of her mother must therefore be married to her mother's only child, which is the woman herself. Thus, the man is the husband of the woman.

Explanation

The relationship in this analogy is based on a profession or role and its associated primary workplace. A gambler carries out their activities inside a casino. Similarly, a clerk performs their professional duties and administrative tasks within an office, making it their designated workplace.

Explanation

The analogy is based on replacing each letter with its corresponding numerical position in the English alphabetical order.

In the alphabetical sequence: K is the 11th letter. L is the 12th letter. This gives the relation K × L to 11 × 12.

Applying the same logic to the next term: F is the 6th letter. R is the 18th letter. This yields the relation F × R to 6 × 18.

Explanation

In the first pair CD: GH, the positional values of the letters in the English alphabet are shifted forward by 4.

C (3) + 4 = G (7) D (4) + 4 = H (8)

Applying the same pattern of +4 to the pair PQ:

P (16) + 4 = T (20) Q (17) + 4 = U (21)

This yields the related pair TU.

Explanation

The relationship between the numbers in the first pair follows the formula where the first number is equal to the square of the second number plus one.

170 = 13² + 1

Applying the same mathematical relation to the second pair, we find the value of the missing number:

257 = y² + 1 y² = 256 y = √256 = 16

Explanation

The relationship is between a professional and their primary workplace. An engineer typically works on a construction site, in an office, a laboratory, or an industrial plant, whereas a home is a place of residence. Therefore, this pair does not represent the standard profession-workplace relationship.

Explanation

The standard pattern in the groups is a constant increase of 8 positions between consecutive letters in the alphabet.

In the letters of SAIR, the alphabetical positions are S (19), A (1), I (9), and R (18). The progression between these letters is:

S (19) + 8 = A (27, or 1 after Z) A (1) + 8 = I (9) I (9) + 9 = R (18)

Because the shift from the third letter to the fourth letter is +9 instead of +8, SAIR violates the general rule.

Explanation

The number 191 is a prime number and an odd number, whereas the other numbers in the set are even and composite numbers.

Explanation

51 is an odd number, while the other numbers in the set are even numbers. Additionally, 51 is not divisible by 4, whereas the other numbers are multiples of 4.

Explanation

Analyzing the progression of each letter position in the given terms:

For the first letter, C, E, G, I, the pattern increases by 2 positions in alphabetical order (3, 5, 7, 9). The next letter is 11, which is K.

For the second letter, L, J, H, F, the pattern decreases by 2 positions in alphabetical order (12, 10, 8, 6). The next letter is 4, which is D.

For the third letter, N, P, R, T, the pattern increases by 2 positions in alphabetical order (14, 16, 18, 20). The next letter is 22, which is V.

For the fourth letter, W, U, S, Q, the pattern decreases by 2 positions in alphabetical order (23, 21, 19, 17). The next letter is 15, which is O.

Combining these results gives the term KDVO.

Explanation

The given series of letter pairs follows a pattern where each term is obtained by shifting the letters of the previous term forward by 6 positions in the alphabetical order.

By converting the letters to their respective numerical positions in the alphabet:

First letter of each term: D (4) + 6 = J (10) J (10) + 6 = P (16) P (16) + 6 = V (22) V (22) + 6 = 28, which corresponds to B (28 - 26 = 2) in the next cycle of the alphabet.

Second letter of each term: G (7) + 6 = M (13) M (13) + 6 = S (19) S (19) + 6 = Y (25) Y (25) + 6 = 31, which corresponds to E (31 - 26 = 5) in the next cycle of the alphabet.

Combining these two resulting letters gives the next term as BE.

Explanation

The differences between consecutive terms in the series are: 24 - 13 = 11 46 - 24 = 22 79 - 46 = 33

The differences are successive multiples of 11 (11, 22, 33). Following this pattern, the next difference in the series must be 44 (11 × 4).

Adding this difference to the last term: 79 + 44 = 123

Explanation

Statement I highlights that flowers give everything to the world before they shed off, which is the definition of living a meaningful, selfless, and significant life. This validates Conclusion II, as flowers serve as a teacher or example of how to lead such an impactful life.

Statement II suggests that human beings should inherit these qualities of complete giving from flowers. Since imparting education and imparting good learnings to the world is a premier form of giving back everything one possesses for the benefit of humanity, this action represents a noble deed in line with inheriting those qualities. Thus, Conclusion I also logically follows from the statements.

Explanation

The given series represents the sequential cycle of the major seasons: Spring, Summer, Monsoon, and Winter. Following Monsoon, the next season in this sequence is Winter.

Explanation

By setting up the seven positions from left to right as 1 to 7, we can determine the arrangement using the given clues.

First, the clue that the person third to the left of Pooja is at one of the ends means Pooja must be at position 4, making position 1 the left end.

Second, the clue that Aditi is fourth to the left of Rohit means Rohit's position must be at least 5. If Rohit is at position 5, then Aditi is at position 1 (5 - 4 = 1).

Since Rohit is at the immediate left of Aakash, Aakash must be at position 6.

Now, we have Aditi at 1, Pooja at 4, Rohit at 5, and Aakash at 6.

Since Divya is a neighbour of both Tulsi and Pooja, she must be adjacent to both of them. Since position 5 is already occupied by Rohit, Divya must be at position 3 (next to Pooja at 4), which places Tulsi at position 2. This leaves position 7 for Usha.

The final linear arrangement from left to right is Aditi, Tulsi, Divya, Pooja, Rohit, Aakash, and Usha.

Thus, the neighbours of Tulsi are Aditi and Divya.

Explanation

To arrange the words in alphabetical order as they appear in a dictionary, we compare their letters from left to right.

All four words start with the letter C. Comparing the second letters, Capability, Carrier, and Cause have the letter a, while Course has the letter o. Since a comes before o, Course comes last.

Next, we compare the third letters of the remaining three words: Capability has the third letter p. Carrier has the third letter r. Cause has the third letter u.

In the alphabet, p comes before r, and r comes before u. Therefore, the alphabetical order of the words is Capability (ii), Carrier (i), Cause (iii), and Course (iv), giving the sequence ii, i, iii, iv.

Explanation

The letters in the given words correspond directly to the digits and characters in the codes based on their positions.

From POUCH coded as 53461: C corresponds to 6 H corresponds to 1

From PRAYERS coded as 5789021: E corresponds to 0

Applying these letter-to-digit mappings to the word CHEES: C becomes 6 H becomes 1 E becomes 0 E becomes 0 S becomes n

Combining these codes in sequence yields 6100n.

Explanation

The pattern in each row of the grid is obtained by subtracting the square root of the second number from the square root of the first number to find the third number.

√Col1 - √Col2 = Col3

Row 1: √9 - √4 = 3 - 2 = 1

Row 2: √36 - √25 = 6 - 5 = 1

Row 3: √144 - √81 = 12 - 9 = 3

Explanation

By substituting the specified mathematical operators in place of the letters: V represents + T represents ÷ R represents - K represents ×

The given expression is: 16 + 24 ÷ 8 - 6 ÷ 2 × 3

Applying the BODMAS rule: First, perform the division operations: 24 ÷ 8 = 3 6 ÷ 2 = 3

This simplifies the expression to: 16 + 3 - 3 × 3

Next, perform the multiplication: 3 × 3 = 9

This simplifies the expression to: 16 + 3 - 9

Next, perform the addition: 16 + 3 = 19

Finally, perform the subtraction: 19 - 9 = 10

Explanation

By placing the set of letters y, x, a, z, a from option A sequentially into the blanks, the series becomes: x y z a x y a a x y z a a a

This complete series is formed by alternating groups of the x, y, z sequence with a progressively increasing number of as: First group: x y z followed by one a (x y z a) Second group: x y followed by two as (x y a a) Third group: x y z followed by three as (x y z a a a)

The pattern alternates the length of the x, y, z sequence (3 letters, then 2 letters, then 3 letters) while steadily increasing the count of as (one, then two, then three), completing the sequence logically.