SSC CHSL Tier 1 2013 General Intelligence & Reasoning Questions with Solutions

Explanation

The relationship between the first pair of words is based on reversing the order of their letters. Writing the letters of the word EDUCATION in reverse order from right to left gives NOITACUDE.

Applying the same logic to the word INTELLIGENCE, reversing the order of its letters from right to left gives ECNEGILLETNI.

Explanation

The relationship between the letter groups follows an alternating addition and subtraction pattern of +1, -1, +1, -1.

For AZCX to BYDW: A + 1 = B Z - 1 = Y C + 1 = D X - 1 = W

Applying this same pattern of +1, -1, +1, -1 to HQJO (represented as HOJO): H + 1 = I Q - 1 = P J + 1 = K O - 1 = N

This yields the letters IPKN.

Explanation

The pattern followed in the given analogy is x : (x² + 2).

For the first number pair: 8 : (8² + 2) = 8 : (64 + 2) = 8 : 66

Applying the same logic to the second pair: z² + 2 = 38 z² = 36 z = 6

Explanation

The relationship between the numbers is based on the sum of their digits.

For the first pair, the sum of the digits of 32 is 3 + 2 = 5, and the sum of the digits of 21 is 2 + 1 = 3. The sum of the digits decreases by 2.

Following this same logic for the second pair, the sum of the digits of 35 is 3 + 5 = 8. Therefore, the sum of the digits of the missing number must be 8 - 2 = 6. The number 51 satisfies this pattern since 5 + 1 = 6.

Alternatively, reversing the digits of 32 gives 23, and subtracting 2 yields 21. Applying this to 35, reversing the digits gives 53, and subtracting 2 yields 51.

Explanation

The analogy represents the relationship between a profession and the primary raw material used in that trade. A cobbler works primarily with leather to craft and repair goods. In the same way, a carpenter works primarily with wood to construct and repair items.

Explanation

The given analogy represents the relationship between a body part and the joint that connects it to the rest of the limb. The wrist is the joint that connects the hand to the arm. Similarly, the ankle is the joint that connects the foot to the leg. This completes the proportional relationship.

Explanation

The relationship in the given pair is Product: Material. A chair is an object that is manufactured using wood as its primary material. Similarly, a mirror is an object that is made using glass as its primary material.

Explanation

In all other pairs, both numbers are consecutive perfect squares of integers. The pair 8-15 is the only one that does not consist of perfect squares, making it the odd one out.

Explanation

Borrowing involves taking and using something temporarily with the intention of returning it, which means there is only a temporary transfer of possession without any permanent transfer of ownership.

Explanation

The word worship is not formed by appending the suffix -ship to the base word war. Etymologically, worship is derived from the Old English word weorthscipe, which is a combination of worth and -ship, meaning worthiness. Because the first word war is not the root or base word of the second word worship, this pair does not follow the suffix-addition relationship, making it the odd one out.

Explanation

In TVZE, the alphabetical positions of the letters are T = 20, V = 22, Z = 26, and E = 5. The differences between the consecutive letters are +2, +4, and +5 (with Z to E wrapping around the alphabet), which does not follow the consistent pattern of adding 2 between successive letters.

Explanation

The numbers in the given set (13:20:27) follow an arithmetic progression with a common difference of 7: 20 - 13 = 7 27 - 20 = 7

Similarly, the set (18:25:32) follows the exact same pattern with a constant difference of 7 between consecutive terms: 25 - 18 = 7 32 - 25 = 7

Explanation

In the given series, there is no occurrence of 'M' that is preceded by 'W' and followed by 'V' (WMV). However, if we account for the common examiner error of swapping the terms "preceded by" and "followed by", the question is looking for 'M's preceded by 'V' and followed by 'W' (VMW), of which there is exactly 1 occurrence in the second row (...UVMWA...).

Explanation

The given words can be arranged in a meaningful chronological order starting from the beginning of the day to the end of the day. Dawn represents the first appearance of light in the morning. This is followed by noon, which represents the middle of the day. Next is evening light or dusk, which is the period of twilight just before the sun goes down. Finally, night is the period of darkness that follows dusk.

Explanation

To arrange the words in alphabetical order as in a dictionary, we compare them letter by letter from left to right.

All four words begin with the letters Aqu.

Looking at the fourth letter, Aquarium and Aquatic have a, Aqueous has e, and Aquiline has i. Since a comes before e, and e comes before i, the words starting with Aqua come first.

Comparing Aquarium and Aquatic, the fifth letter of Aquarium is r and the fifth letter of Aquatic is t. Since r comes before t, Aquarium (2) is first and Aquatic (4) is second.

For the remaining words, the fourth letter of Aqueous (1) is e and the fourth letter of Aquiline (3) is i. Since e comes before i, Aqueous (1) is third and Aquiline (3) is fourth, which gives the sequence 2, 4, 1, 3.

Explanation

When the letters of the chosen group (acmmma) are placed sequentially in the blanks of the series, the completed pattern is:

mcamcamcamcamcamcamc

This sequence represents a continuous repetition of the three-letter unit "mca" (mca / mca / mca / mca / mca / mca / mc), which perfectly and logically completes the series.

Explanation

The given series follows a pattern where consecutive odd numbers are added to each subsequent term:

6 - 5 = 1 9 - 6 = 3 14 - 9 = 5 21 - 14 = 7

Following this sequence, the next difference must be the next odd number, which is 9. Therefore, the next term is obtained by adding 9 to the last term: 21 + 9 = 30.

Explanation

The given series follows the pattern of n³ + 3, where n represents the position of the term in the series starting from 1.

For n = 1: 1³ + 3 = 1 + 3 = 4 For n = 2: 2³ + 3 = 8 + 3 = 11 For n = 3: 3³ + 3 = 27 + 3 = 30 For n = 4: 4³ + 3 = 64 + 3 = 67 For n = 5: 5³ + 3 = 125 + 3 = 128

Following this pattern, the next term in the series for n = 6 is: 6³ + 3 = 216 + 3 = 219

Explanation

The total number of letters in a row is determined by the standard ranking formula:

Total = L + R - 1

where L is the position of the letter from the left and R is its position from the right.

Substituting the given values:

L = 5 R = 12

Total = 5 + 12 - 1 = 16

Subtracting 1 is required because the letter itself is counted twice — once in the count from the left and once in the count from the right.

Explanation

To determine the relationship, we can break down Simon's statement starting from the end. Simon's father's only sister is his paternal aunt. The daughter of Simon's paternal aunt is his paternal cousin sister. This establishes that the woman is Simon's paternal cousin sister.

Explanation

In this coding scheme, each letter is assigned a numerical value corresponding to its position in the English alphabet, where A = 1, B = 2, C = 3, and so on.

The value of a word is calculated as the sum of the numerical positions of its individual letters.

For the word ACT: A = 1 C = 3 T = 20 Sum = 1 + 3 + 20 = 24

Applying the same logic to the word FAT: F = 6 A = 1 T = 20 Sum = 6 + 1 + 20 = 27

Explanation

If the day before yesterday was Wednesday, then yesterday was Thursday, and today is Friday. Counting forward from today, tomorrow will be Saturday, and the day after tomorrow will be Sunday.

Explanation

Correct Answer: D

By translating the given relationships into age-based inequalities, we have:

Lakshmi is older than Meenu, which gives Lakshmi > Meenu.

Laula is older than Meenu but younger than Lakshmi, which gives Lakshmi > Laula > Meenu.

Hari is younger than Meenu, which gives Meenu > Hari.

Combining these relations establishes the order: Lakshmi > Laula > Meenu > Hari.

Lata is younger than both Meenu and Hari, which places Lata at the bottom of the order.

Combining all relations, we get the complete order from oldest to youngest: Lakshmi > Laula > Meenu > Hari > Lata.

Explanation

Let Rohan's age be R and Nikhil's age be N. Since Nikhil is 8 years younger than Rohan, the difference in their ages remains constant at 8 years: N = R - 8

We need to find Rohan's age when Rohan is twice as old as Nikhil: R = 2N

Substituting the first equation into the second: R = 2(R - 8) R = 2R - 16 R = 16

Explanation

The letters required to form the word PARROT are P, A, R, R, O, and T. All of these letters are present in the word PREPARATION in the required quantities, as PREPARATION contains two P's, two R's, two A's, one O, and one T. This allows the word PARROT to be fully constructed.

Explanation

The code for each letter is determined by substituting the corresponding digit from the given words.

From GLOSSORY coded as 97533562: G = 9 L = 7 O = 5 Y = 2

From GEOGRAPHY coded as 915968402: G = 9 E = 1 O = 5 Y = 2

Using these direct letter-to-digit mappings: G is 9 E is 1 O is 5 L is 7 O is 5 G is 9 Y is 2

Combining these digits in order for GEOLOGY gives 9157592.

Explanation

The coding pattern divides the letters of the word into three parts: the first three letters (prefix), the middle letters, and the last three letters (suffix). In the coded form, the position of these blocks is reversed while keeping the internal order of the letters in each block the same.

For the word NEUROTIC, the divisions are NEU (first three letters), RO (middle two letters), and TIC (last three letters). Placing them in reverse block order gives TIC + RO + NEU which is TICRONEU.

Applying the same pattern to the nine-letter word PSYCHOTIC, the divisions are PSY (first three letters), CHO (middle three letters), and TIC (last three letters). Reversing the block order gives TIC + CHO + PSY which is TICCHOPSY.

Explanation

Each letter in the sequence corresponds to a specific number-code according to the given mapping: J is represented by 1. W is represented by 9. X is represented by 8. C is represented by 3. L is represented by 6. Z is represented by 4.

Combining these individual codes in the order of the alphabets J W X C L Z results in the number-code 198364.

Explanation

The word INTERVENTION does not contain the letter A, which is required to form the word ENTERTAIN. Therefore, ENTERTAIN cannot be formed using the letters of the given word.

Explanation

The pattern in each column is that the number in the fourth row is the sum of the numbers in the first three rows.

For the first column: 81 + 49 + 9 = 139

For the second column: 36 + 100 + 64 = 200

Applying the same pattern to the third column: 25 + 36 + 16 = 77

Explanation

The pattern in each row follows the relationship where the product of the first two numbers equals the third number.

In the first row, 2 × 24 = 48.

In the second row, 3 × 9 = 27.

Following this pattern for the third row, the product of 4 and the missing number must equal 40. Therefore, 4 × 10 = 40.

Explanation

The logical pattern followed in these equations is to find the sum of the first three digits of the given four-digit number and then multiply this sum by the fourth digit.

For the first equation, 2463: (2 + 4 + 6) × 3 = 12 × 3 = 36

For the second equation, 5552: (5 + 5 + 5) × 2 = 15 × 2 = 30

Applying the same rule to the unsolved equation, 6732: (6 + 7 + 3) × 2 = 16 × 2 = 32

Explanation

By observing the given equations, the digits on the left-hand side are rearranged in a specific positional pattern to form the number on the right-hand side.

For any expression in the form a × b × c, the digits are rearranged in the order bca.

In the first equation: 4 × 6 × 9 = 694 Here, a = 4, b = 6, and c = 9. Following the bca pattern, the digits are rearranged to form 694.

In the second equation: 5 × 3 × 2 = 325 Here, a = 5, b = 3, and c = 2. Following the bca pattern, the digits are rearranged to form 325.

Applying the same pattern to the unsolved equation: 7 × 8 × 2 Here, a = 7, b = 8, and c = 2. Arranging these digits in the bca order gives 827.

Explanation

Let the starting point be represented by the coordinates (0, 0).

First, Ram walks 15 metres towards the North, reaching the coordinates (0, 15).

Next, he turns right, which is towards the East, and walks 20 metres, reaching the coordinates (20, 15).

He then turns right again, which is towards the South, and walks 10 metres, reaching the coordinates (20, 5).

Finally, he turns right once more, which is towards the West, and walks 20 metres, reaching the coordinates (0, 5).

The distance from his starting point (0, 0) to his final position (0, 5) is the difference in their vertical coordinates, which is 15 - 10 = 5 metres.

Explanation

By placing the signs from Option A into the equation and correcting a common typographical error where the plus sign + was misprinted as the multiplication sign ×, we obtain the sequence + − + =.

Substituting these signs into the expression: 5 + 6 − 5 + 8 = 14

Applying the order of operations: LHS = 5 + 6 − 5 + 8 LHS = 11 − 5 + 8 LHS = 6 + 8 LHS = 14

Since LHS = RHS, the equation is balanced.

Explanation

Substituting the operators as per the given instructions: '×' is replaced by '+' '+' is replaced by '÷' '−' is replaced by '×' '÷' is replaced by '−'

The given expression is: 40 × 12 + 3 − 6 ÷ 60

By substituting the symbols, the equation becomes: 40 + 12 ÷ 3 × 6 − 60

According to the BODMAS rule:

First, perform the division operation: 12 ÷ 3 = 4 The expression becomes: 40 + 4 × 6 − 60

Next, perform the multiplication operation: 4 × 6 = 24 The expression becomes: 40 + 24 − 60

Then, perform the addition operation: 40 + 24 = 64 The expression becomes: 64 − 60

Finally, perform the subtraction operation: 64 − 60 = 4

Explanation

Let the starting point be O. When A walks 3 km towards the east, he reaches a point B. Turning left from the east direction means turning towards the north. Walking 3 km north from B brings him to a point C. From C, turning left again means turning towards the west. Walking 3 km west from C brings him to a point D. Since the distance covered towards the east from O to B (3 km) is equal to the distance covered towards the west from C to D (3 km), the final position D lies directly above the starting point O. This position is exactly 3 km to the north of the starting point.

Explanation

The given premises do not establish a logical link to validate either conclusion. Statement (i) concerns the security of Indian museums, whereas Statement (ii) identifies Victoria Memorial Hall as a national property. There is no information in either statement to suggest that all Indian museums are national property, meaning Conclusion I does not logically follow. Additionally, the statements focus on security and the status of a specific property, without making any mention of the preservation of historical property by the Central Government. Consequently, Conclusion II cannot be deduced from the premises.

Explanation

The statements only establish that there is an intersection between chairs and things made of wood, and between tables and things made of wood.

Conclusion I is invalid because the premises do not define wood as an exclusive material for chairs and tables. Many other items, such as doors or boats, can also be made of wood, meaning we cannot conclude that all things made of wood are either chairs or tables.

Conclusion II is also invalid because there is no direct or indirect relation established between chairs and tables in the premises. In a Venn diagram, the set of chairs and the set of tables do not necessarily have any overlapping region.

Explanation

The total number of families is 60.

First, calculate the number of families that own a car: 30% of 60 = 0.30 × 60 = 18 families

This leaves a remaining count of families: 60 - 18 = 42 families

Next, calculate the number of families that own a motorcycle, which is 50% of the remaining families: 50% of 42 = 0.50 × 42 = 21 families

The balance of families who own a bicycle is: 42 - 21 = 21 families

Explanation

By analyzing the relative positions of the seven members from the given statements, we can construct the linear arrangement step by step:

From the statement that C is sitting to the left of B but to the right of D, we get the sequence: D - C - B.

Since A is sitting to the right of B, this sequence becomes: D - C - B - A.

The statement that F is sitting to the right of E but to the left of D gives the sequence: E - F - D.

Combining this with the previous sequence results in: E - F - D - C - B - A.

Finally, because H is sitting to the left of E, we get the complete seating arrangement from left to right: H - E - F - D - C - B - A.

Counting from either end of this seven-member arrangement, the person sitting exactly in the middle position is D.

Explanation

To arrange the words in alphabetical order according to the English dictionary, we compare their letters from left to right. All four words begin with Vo. Comparing the third letter of each word, we have c in Vocation, i in Voice, l in Volume, and y in Voyage. Arranging these third letters alphabetically gives c, followed by i, then l, and finally y. This yields the correct sequence: Vocation (3), Voice (2), Volume (4), and Voyage (1), which represents the order 3, 2, 4, 1.

Explanation

To complete the series, we can identify a repeating pattern of three-letter blocks.

If we divide the series into groups of three, the repeating pattern is: aab aab aab

Placing the letter a in each of the three gaps of the series a_ba_b_ab completes this pattern: a a b a a b a a b

Thus, the sequential set of letters that completes the series is aaa.

Explanation

The given series is 4, 7, 13, 22, 34, ...

Calculating the differences between consecutive terms: 7 - 4 = 3 13 - 7 = 6 22 - 13 = 9 34 - 22 = 12

The differences form an arithmetic sequence of consecutive multiples of 3: 3, 6, 9, 12, ...

The next difference in the sequence must be 15.

Adding this difference to the last term: 34 + 15 = 49

Explanation

The series follows a simple alphabetical progression where each letter of a term increases by one position in the alphabet to form the corresponding letter of the next term.

For the first letter of each term: F + 1 → G G + 1 → H H + 1 → I I + 1 → J

For the second letter of each term: L + 1 → M M + 1 → N N + 1 → O O + 1 → P

For the third letter of each term: A + 1 → B B + 1 → C C + 1 → D D + 1 → E

Combining these individual letter progressions gives the next term in the series.

Explanation

The terms in the series follow the pattern n³ + 10, where n starts from 5 and increases by 1 for each successive term.

5³ + 10 = 125 + 10 = 135 6³ + 10 = 216 + 10 = 226 7³ + 10 = 343 + 10 = 353 8³ + 10 = 512 + 10 = 522 9³ + 10 = 729 + 10 = 739

Explanation

Let today be represented as T. The day before yesterday is T - 2, which is Sunday. This means today is Tuesday. The day after tomorrow is T + 2, which is two days after Tuesday, making it Thursday.

Explanation

Let the jumping heights of Prakash, Pinakin, Ketan, Rohan, and Pranav be represented by their respective names.

The first statement states that Prakash jumps higher than Pinakin, but not as much as Ketan. This gives the following order: Ketan > Prakash > Pinakin

The second statement states that Rohan jumps lower than Pranav but not less than Ketan, meaning Rohan's jump is greater than or equal to Ketan's jump: Pranav > Rohan ≥ Ketan

Combining these two relations yields the complete sequence of jumping heights: Pranav > Rohan ≥ Ketan > Prakash > Pinakin

In this combined inequality, Pinakin is at the lowest end of the sequence, making him the one who jumps the lowest.

Explanation

Let Leela's present age be L and her grandmother's present age be G.

According to the first condition, the difference in their ages is 60 years: G - L = 60

According to the second condition, after 10 years, the sum of their ages is 100 years: (G + 10) + (L + 10) = 100 G + L + 20 = 100 G + L = 80

Adding the two equations: (G - L) + (G + L) = 60 + 80 2G = 140 G = 70

Substituting G = 70 into the second equation: 70 + L = 80 L = 10

Thus, Leela's present age is 10 years and her grandmother's present age is 70 years.

Explanation

The total number of girls in a row when the position of a person is known from both ends is given by the formula:

Total = Position from left + Position from right - 1

Substituting the given values:

Total = 19 + 19 - 1 = 37

This subtraction of 1 is necessary because Sarika is counted twice—once from the left end and once from the right end.