RRB NTPC CBT 1 2020 General Intelligence & Reasoning Questions with Solutions

Explanation

Let the eight positions on the octagon facing the centre be numbered 1 to 8 in a clockwise direction. Placing Medha at position 1 puts Radha opposite her at position 5. Since Medha is to Seema's left, Seema is at position 8. Raman is next to Seema and opposite Govind, placing Raman at position 7 and Govind at position 3. Since Govind is on Chandra's right, Chandra is at position 4. Position 8, which is directly opposite to Chandra at position 4, is occupied by Seema.

Explanation

Pediatrics is the branch of medicine that deals with the medical care of infants, children, and adolescents. Similarly, neurology is the branch of medicine that specializes in the diagnosis, treatment, and management of disorders affecting the brain and the nervous system.

Explanation

A book is a medium consisting of bound pages used to store or display written text and images, whereas the other items are writing instruments used to mark or write on surfaces. This makes a book a reading object rather than a writing tool.

Explanation

The pattern adds consecutive integers to the alphabetical position of each letter in the cluster:

R (+1) = S A (+2) = C M (+3) = P O (+4) = S

Applying the same (+1, +2, +3, +4) pattern to VXMJ:

V (+1) = W X (+2) = Z M (+3) = P J (+4) = N

Explanation

After dropping all special characters (!, #, *, %) from the given sequence, the arrangement becomes: 3 X B 9 F 4 5 1 K 2 S 8 R S Z

Counting ten places to the right starting immediately after X gives: 1st is B, 2nd is 9, 3rd is F, 4th is 4, 5th is 5, 6th is 1, 7th is K, 8th is 2, 9th is S, and the 10th position is 8.

Explanation

The pattern followed in each column is: Bottom number = (Third number + 1)² × Middle number

Column 1: (7 + 1)² × 6 = 8² × 6 = 64 × 6 = 384

Column 2: (6 + 1)² × 5 = 7² × 5 = 49 × 5 = 245

Column 3: (5 + 1)² × 4 = 6² × 4 = 36 × 4 = 144

Alternatively, using the first number in the column: (First number + 3)² × Middle number gives (3 + 3)² × 4 = 36 × 4 = 144.

Explanation

A lawyer works in a court to perform their professional duties. Similarly, a beautician performs their professional duties in a parlour. Both pairs follow the relationship of a professional and their primary workplace.

Explanation

The general pattern follows the rule where the second number is obtained by multiplying the first number by 8. For 16, 16 × 8 = 128, whereas 118 is given instead, making this pair the odd one out.

Explanation

The word LAUGHTER contains the letters L, A, U, G, H, T, E, R. The word GRUNT cannot be formed because it requires the letter N, which is not present in LAUGHTER.

Explanation

Distance covered by the first bus along the direction of the main road = 35 + 42 = 77 km.

Distance covered by the second bus along the main road from the opposite end = 36 km.

Total distance covered by both buses towards each other along the main road = 77 + 36 = 113 km.

Distance remaining between the two buses = Total distance - Total covered distance = 185 - 113 = 72 km.

Explanation

A writer uses a pen as a primary tool to perform work. Similarly, a tailor uses a needle as a primary tool to stitch and create garments.

Explanation

Placing the letters a, c, b, c, b sequentially into the five blanks completes the 18-letter sequence:

c a b b a c | c a b b a c | c a b b a c

This forms a clear repeating pattern of the 6-letter block "c a b b a c" repeated 3 times.

Explanation

The pattern followed in the series for each position in the letter cluster is:

First letter advances by 2 positions: B (+2) → D (+2) → F (+2) → H (+2) → J

Second letter moves backward by 1 position: Z (-1) → Y (-1) → X (-1) → W (-1) → V

Third letter advances by 2 positions: A (+2) → C (+2) → E (+2) → G (+2) → I

Combining the result of each position gives JVI.

Explanation

Starting from his initial position (0, 0):

Walking 5 km facing South moves him 5 km southward to (0, -5). Turning 90° to his right changes his direction to West. Walking 5 km moves him to (-5, -5). Turning 45° to his left from West directs him towards South-West. Walking 3 km further in this direction increases both his westward and southward distances from the origin, placing him at (-5 - 3 cos 45°, -5 - 3 sin 45°).

Since both coordinates are negative relative to the starting point, his final location is in the South-West direction from his original position.

Explanation

The relation between the numbers follows the pattern (n + 1) ÷ 2.

For the first pair: (21 + 1) ÷ 2 = 22 ÷ 2 = 11

Applying the same logic to the third number: (31 + 1) ÷ 2 = 32 ÷ 2 = 16

Explanation

In each column, the square of the bottom number minus the middle number equals the top number: (Bottom Number)² - Middle Number = Top Number.

Column 1: 6² - 8 = 36 - 8 = 28 Column 2: 9² - 18 = 81 - 18 = 63 Column 3: 13² - ? = 94 ⟹ ? = 169 - 94 = 75

Explanation

Since P, Q, and R are siblings, they share the same parents. S is the mother and T is the father of all three siblings (P, Q, and R). Since T is Q's father, T cannot be Q's husband.

Explanation

The word TOUGH contains the letter 'O', which is not present in the word DAUGHTER.

Explanation

The five positions from West to East are numbered 1 to 5.

Meena is at the West end (Position 1) and Teena is at the East end (Position 5).

Since Beena is to the right of Meena and to the left of Leena, Beena must be at Position 2. Leena and Reena occupy Positions 3 and 4. Since Beena is to the left of Leena, Leena is at Position 3 and Reena is at Position 4.

The seating arrangement from West to East is: Meena (1), Beena (2), Leena (3), Reena (4), Teena (5).

Reena is sitting at Position 4, which is second from the East end.

Explanation

Let the five seating positions from left to right be 1, 2, 3, 4, and 5.

Aastha sits at the left end, so she is at position 1. Since Shyam is her neighbour, Shyam sits at position 2.

Manjeet sits in the middle of the row at position 3. Because Amita is not a neighbour of Manjeet, Amita cannot sit at position 4, placing her at position 5.

The remaining position 4 is occupied by Sunil.

The complete arrangement from left to right is Aastha, Shyam, Manjeet, Sunil, and Amita. Sunil is positioned at position 4 between Manjeet (position 3) and Amita (position 5), making Manjeet and Amita his neighbours.

Explanation

The pattern in the series is obtained by multiplying the digits of the preceding number and adding 1 to the result:

6 × 9 + 1 = 55 5 × 5 + 1 = 26 2 × 6 + 1 = 13 1 × 3 + 1 = 4

Explanation

Combining the statement "Some Red are Colours" with "All Colours are Paints" leads directly to the logical deduction that "Some Red are Paints", which makes Conclusion I valid. Conclusion II does not follow because the universal statement "All Roses are Red" converts validly only to "Some Red are Roses", not to "All Red are Roses".

Explanation

The pattern in the series is based on consecutive squares plus 1:

2² + 1 = 5 3² + 1 = 10 4² + 1 = 17 5² + 1 = 26 6² + 1 = 37

Alternatively, the difference between consecutive terms increases by 2 each time (+5, +7, +9, +11). Adding 11 to 26 gives 37.

Explanation

The given series consists of two alternating sub-series:

Odd-positioned terms (1st, 3rd, 5th, 7th): 97, 101, 107, ? The differences between consecutive terms are consecutive even numbers (+4, +6, +8). 97 + 4 = 101 101 + 6 = 107 107 + 8 = 115

Even-positioned terms (2nd, 4th, 6th): 86, 89, ? The differences between consecutive terms are consecutive odd numbers (+3, +5). 86 + 3 = 89 89 + 5 = 94

Thus, the two missing numbers replacing the question marks are 94 and 115.

Explanation

In the letter cluster MNPO, the positional values of the letters are M (13), N (14), P (16), and O (15), which follow the positional step pattern of +1, +2, -1. This deviates from the standard pattern of +2, -1, +2 followed by the other letter clusters, making MNPO the odd one out.

Explanation

In the pair Paper : note, a note is written on paper, representing a content-medium relationship. In contrast, the general pattern among the pairs is that the second word is an outer covering or wrapping designed to cover the first object or body part.

Explanation

The pattern is obtained by calculating the sum of the alphabetical positional values of the letters (A = 1, B = 2, ..., Z = 26) and then multiplying the digits of the resulting sum:

AMBER = 1 + 13 + 2 + 5 + 18 = 39 → 3 × 9 = 27 BROWN = 2 + 18 + 15 + 23 + 14 = 72 → 7 × 2 = 14 GREEN = 7 + 18 + 5 + 5 + 14 = 49 → 4 × 9 = 36

Explanation

From the given statements, the only valid conclusion that logically follows is "Some players are not pilots." None of the options A, B, C, or D logically follow from the premises, so no given option is correct.

Explanation

Let the 6 positions around the circle be numbered 1 through 6 in clockwise order, where position 1 is opposite 4, position 2 is opposite 5, and position 3 is opposite 6.

Placing Rohit at seat 1 puts Mohan opposite him at seat 4. Since Rohit sits between Ram and Mohit, Ram and Mohit occupy seats 2 and 6 in some order. Mohit is sitting opposite Shyam, so Shyam occupies the position opposite Mohit. In either configuration, Rohan takes the remaining unoccupied seat, placing him directly opposite Ram.

Explanation

The relationship is based on the primary function or purpose for which the animal is utilized by humans. A dog is used for guarding, so the action associated with its function is guard. Similarly, a horse is utilized for riding, making ride the corresponding action associated with its function.

Explanation

I and M are sisters, meaning they share the same father. Since K is the son of I's paternal uncle (father's brother), K is also the son of M's paternal uncle. The child of a paternal uncle is a cousin, making K the cousin of M.

Explanation

Total distance travelled along the diverted path = 10 + 8 + 12 + 8 + 4 = 42 km.

Setting the initial direction from A to B along the y-axis starting at A(0, 0): B = (0, 10) After turning right, C = (8, 10) After turning left, D = (8, 22) After turning left, E = (0, 22) After turning right, F = (0, 26)

Destination F lies on the same straight line as the original path AB, making the direct distance equal to 10 + 12 + 4 = 26 km.

Distance saved = 42 km - 26 km = 16 km.

Explanation

Each letter in the word is shifted forward by 13 positions in the alphabetical order (ROT13 cipher). Applying this rule to RAINDROP yields E (R+13), N (A+13), V (I+13), A (N+13), Q (D+13), E (R+13), B (O+13), and C (P+13), which forms ENVAQEBC.

Explanation

To find the mirror image of a word when a vertical mirror is placed to its right, the sequence of letters is reversed from right to left, and each individual character undergoes lateral inversion (horizontal reflection).

Reversing the order of letters in CHIVALRY produces the sequence Y, R, L, A, V, I, H, C. Horizontally flipping each character transforms C to Ɔ, H to H, I to I, V to V, A to A, L to its horizontally mirrored form, R to Я, and Y to Y. Combining these laterally inverted letters in reversed sequence yields YЯLAVIHƆ.

Explanation

Substituting the given code letters with their mathematical operations: B = (, A = +, S = −, F = ), D = ÷, and M = ×, the given expression B700A110S90FDB9M10S10F transforms into:

(700 + 110 − 90) ÷ (9 × 10 − 10)

Applying the BODMAS order of operations to solve inside the parentheses:

First bracket: 700 + 110 − 90 = 810 − 90 = 720

Second bracket: 9 × 10 − 10 = 90 − 10 = 80

Dividing the result of the first bracket by the second bracket:

720 ÷ 80 = 9

Explanation

The coding logic replaces each letter with its corresponding positional rank in the English alphabet (A = 1, C = 3, E = 5, L = 12, N = 14, S = 19, X = 24).

Applying this pattern to EXCELLENCE: E = 5 X = 24 C = 3 E = 5 L = 12 L = 12 E = 5 N = 14 C = 3 E = 5

Concatenating these values sequentially gives 52435121251435.

Explanation

Shaurya is the son of Sandy and Anchal, while Karan is the son of Rashmi. Since both Sandy and Rashmi belong to the generation of Shanti and Abhi's children, their sons Shaurya and Karan belong to the same generation as great-grandchildren, making Shaurya the cousin of Karan.

Explanation

The given statement specifies that a fine is charged for late payment of exam fees, which implies the general rule that fees must be paid on time to avoid paying a penalty. The other options make extreme generalizations or introduce unstated facts about student behavior or revenue sources.

Explanation

A grasshopper belongs to the class Insecta (Insect). Similarly, a hyena belongs to the class Mammalia (Mammal), as it is a warm-blooded vertebrate that gives birth to live young and nurses them with milk. The analogy represents the relationship between an animal and its taxonomic class.

Explanation

Golf is a club-and-ball sport played on a course, whereas the other three are all athletic throwing disciplines in track and field.

Explanation

Spear, catapult, pistol, and rifle are all instruments designed to inflict physical damage, harm, or destruction in combat or defense. While spear and catapult represent historical cold and siege weapons, pistol and rifle are modern firearms. Weapons serves as the broad, all-encompassing umbrella category that accurately classifies every item in the list.

Explanation

The two students studying in J college consist of one who is good at Maths and one who is good at all subjects. Since Pinky is good at Maths, she is the student in J college who is good at Maths. Tanisha studies in A college, so she is not in J college and cannot be good at all subjects. Since Sharayu is not good at Science, she cannot be good at all subjects either. This leaves Mamta as the second student studying in J college who is good at all subjects.

Explanation

The nth term of the series follows the formula T(n) = 2 × (n + 1)².

For n = 1: 2 × 2² = 8 For n = 2: 2 × 3² = 18 For n = 3: 2 × 4² = 32 For n = 4: 2 × 5² = 50 For n = 5: 2 × 6² = 72

Alternatively, the difference between consecutive terms increases by 4 each time (10, 14, 18, 22), giving 50 + 22 = 72.

Explanation

The given sequence consists of consecutive prime numbers ending with the digit 9.

Among the numbers ending in 9, 19 and 29 are prime numbers. The numbers 39 (3 × 13) and 49 (7 × 7) are composite, making 59 the next prime ending in 9. The number 69 (3 × 23) is composite, making 79 the next prime ending in 9. Following this pattern, the next prime number ending with 9 after 79 is 89.

Explanation

When a qualification is declared mandatory for a position, it serves as an indispensable eligibility requirement. Since passing NET is stated as a mandatory condition for applying for the post of lecturer, it directly follows that passing NET is a necessary requirement, and only those individuals who have cleared NET meet the eligibility criteria to qualify for college teaching.

Explanation

Earth revolves around the Sun, making the Sun the central body around which Earth orbits. Similarly, the Moon revolves around the Earth, making Earth the central body around which the Moon orbits.

Explanation

By set inclusion, statement 1 implies that chocolates are a subset of candies, and statement 2 implies that candies are a subset of toffees. By the transitive property of set inclusion, all chocolates are contained within toffees, making conclusion 1 logically valid. A universal affirmative statement cannot be converted directly, so all candies being toffees does not mean all toffees are chocolates, making conclusion 2 invalid.

Explanation

Negligent and attentive are antonyms, as negligent means careless or failing to take proper care, while attentive means paying close attention. This pair expresses an opposite relationship, unlike the other pairs which consist of synonyms.

Explanation

Feline is the term used to denote animals belonging or relating to the cat family (Felidae). Similarly, canine is the adjective and noun used to describe animals belonging or relating to the dog family (Canidae).

Explanation

Arranging the height relationships in descending order from the given statements: Bella > Umesh > Shubham Shubham > Rahul Rahul > Salman

Combining these relations yields a single complete chain: Bella > Umesh > Shubham > Rahul > Salman

This places Salman at the very end of the inequality chain, showing he has the least height among all five individuals.