RRB NTPC CBT 1 2021 General Intelligence & Reasoning Questions with Solutions

Explanation

Each letter of the word SHUTTER is transformed by shifting its position forward in the English alphabetical series:

S (+1) = T H (+1) = I U (+2) = W T (+1) = U T (+2) = V E (+1) = F R (+4) = V

Applying these positional forward shifts in sequence to the letters of SHUTTER yields the coded word TIWUVFV.

Explanation

The series follows a pattern where consecutive even numbers (+2, -4, +6, -8, ...) are alternately added and subtracted:

5 + 2 = 7 7 - 4 = 3 3 + 6 = 9 9 - 8 = 1

Explanation

To prevent the project from entering a crisis, at least some employees must expedite their work and submit their reports by the given deadline tomorrow, making the second course of action an essential immediate measure. Furthermore, investigating why employees are submitting late and implementing counter-measures addresses the underlying issue systematically, making the third course of action a logically sound problem-solving approach.

Explanation

A judge's primary function or responsibility is to give a verdict. Following the same logic, a coach's primary function or duty is to train individuals or teams. The second term represents the core professional activity performed by the person mentioned in the first term.

Explanation

Let the college library be at the starting coordinate (0, 0).

Walking 70 m North reaches (0, 70). Walking 60 m East reaches (60, 70). Walking 45 m North reaches (60, 115). Walking 60 m West reaches (0, 115), which is the location of the candy shop.

The East and West movements cancel out (60 m East - 60 m West = 0 m). The total displacement along the North direction to the candy shop is 70 m + 45 m = 115 m. Therefore, relative to the candy shop, the college library is 115 m to the South.

Explanation

A loom is an apparatus used in textile manufacturing for weaving thread or yarn into fabric. Unlike the rest, which are agricultural implements used in farming and crop cultivation, a loom belongs to the textile industry.

Explanation

A writer uses a pen as a primary tool to perform their work. Similarly, a chef uses a pan as a primary tool to prepare food. Both pairs demonstrate the relationship between a professional and the tool used in their profession.

Explanation

Statement 1 states that English, Portuguese, Tamil, and Sanskrit are some of the languages taught in the school, which logically implies that other languages are also taught in the school, so conclusion (i) follows. Statement 3 mentions that all languages in the school are taught by well-qualified teachers. Since Tamil is one of the languages taught in the school, it is taught by a well-qualified teacher, so conclusion (ii) also follows. Statement 2 directly contradicts conclusion (iii) by specifying that neither Arabic nor French is taught in the school.

Explanation

In the standard English alphabet, opposite letters have position sums equal to 27. The established pattern pairs the 1st letter with the 3rd letter and the 2nd letter with the 4th letter as opposite letter pairs. In GIVO (G = 7, I = 9, V = 22, O = 15), the sum of the 1st and 3rd letters is 7 + 22 = 29 and the sum of the 2nd and 4th letters is 9 + 15 = 24, failing to form opposite-letter pairs.

Explanation

The pattern in the series is based on adding consecutive multiples of 5 to each term:

8 - 3 = 5 18 - 8 = 10 33 - 18 = 15 53 - 33 = 20

The differences between successive terms increase by 5 each time: 5, 10, 15, 20. Following this sequence, the next difference to add is 25.

53 + 25 = 78

Explanation

The pattern in the given series follows the rule: next term = (previous term × 3) + 1.

2 × 3 + 1 = 7 7 × 3 + 1 = 22 22 × 3 + 1 = 67 67 × 3 + 1 = 202

Alternatively, the difference between consecutive terms triples at each step: 5, 15, 45, and 135. Adding 135 to 67 yields 202.

Explanation

James is the father of Eden, which makes Eden the daughter of James. Since Robert is married to Eden, Robert is the husband of James's daughter, or James's daughter's husband.

Explanation

In the given pattern, the last two digits of the number are formed by taking the square of the first digit. For 463, the square of the first digit 4 is 16 (4² = 16), whereas the given last two digits are 63, which does not follow this rule.

Explanation

The given statements establish that all potatoes are garlic, some garlic are apples, and some potatoes are not apples. None of these premises restrict garlic exclusively to the sets of apples and potatoes. It is entirely possible for garlic to exist that is neither an apple nor a potato. Consequently, the claim that every garlic must be either an apple or a potato does not logically flow from the statements.

Explanation

Each letter in the word is shifted forward by 3 positions in the alphabetical series (+3 shift).

F (6) + 3 = 9 (I), R (18) + 3 = 21 (U), E (5) + 3 = 8 (H), E (5) + 3 = 8 (H) gives IUHH. T (20) + 3 = 23 (W), R (18) + 3 = 21 (U), E (5) + 3 = 8 (H), E (5) + 3 = 8 (H) gives WUHH.

Applying the same pattern to MORE: M (13) + 3 = 16 (P) O (15) + 3 = 18 (R) R (18) + 3 = 21 (U) E (5) + 3 = 8 (H)

This yields the coded word PRUH.

Explanation

Each letter in the word is shifted backward by an increasing number of positions (-1, -2, -3, -4, -5):

D - 1 = C A - 2 = Y I - 3 = F S - 4 = O Y - 5 = T

Applying the same pattern to ROSE: R - 1 = Q O - 2 = M S - 3 = P E - 4 = A

Explanation

The pattern followed in each column is that the middle number is the product of the top and bottom numbers.

In Column 1: 16 × 8 = 128 In Column 3: 14 × 9 = 126

Applying the same logic to Column 2: 16 × 5 = 80

Explanation

The difference between consecutive terms in the series follows the pattern of consecutive perfect squares (1², 2², 3², 4², ...):

7 - 6 = 1 = 1² 11 - 7 = 4 = 2² 20 - 11 = 9 = 3² 36 - 20 = 16 = 4²

Adding 5² = 25 to the last term gives 36 + 25 = 61.

Explanation

Position of the required letter = 12 + 8 = 20th letter from the beginning of the English alphabet. The 20th letter is T.

Explanation

Christopher is your maternal uncle, which means he is your mother's brother. Merciya is Christopher's wife, and Sophie's sister is Merciya. Jonathan is Sophie's sister's son, making him the son of Merciya and Christopher. Since Christopher is Jonathan's father, your mother (being Christopher's sister) is Jonathan's father's sister.

Explanation

In each column, the bottom number is the product of the three numbers above it.

First column: 9 × 5 × 3 = 135 Second column: 5 × 7 × 4 = 140

Applying the same pattern to the third column: 5 × ? × 5 = 150 25 × ? = 150 ? = 6

Explanation

Comics is a static visual medium consisting of sequential print illustrations and text arranged in panels, whereas motion media formats rely on moving pictures and sound for screen presentation. This fundamental difference in visual display and medium type sets comics apart.

Explanation

The price increase in motorcycles over a two-year period and the price reduction in a specific brand of laptops over a two-month period pertain to entirely different industries, markets, and timeframes. Price changes in the automotive sector are driven by factors such as rising raw material costs, regulatory updates, or fuel economy demands, whereas price drops in consumer electronics are influenced by technological advancements, component cost reductions, or brand-specific promotional strategies. Because these two events are unrelated and stem from distinct market dynamics, both statements represent effects of independent causes.

Explanation

The given sequence consists of two alternating logical steps. The terms at even positions form an increasing sequence of numbers: 2, 3, 4.

The terms at odd positions are generated by multiplying the preceding term at an odd position by the corresponding term at an even position: 16 × 2 = 32 32 × 3 = 96 96 × 4 = 384

Explanation

Since Daman is the paternal aunt of Zaman, Sochio is Zaman's father, which makes Sochio male. Sochio and Daman are siblings, and Sher is the brother of their mother. This makes Sher the maternal uncle of both Sochio and Daman. Consequently, Sochio is Sher's only nephew, while Daman is Sher's only niece.

Explanation

A King resides in a Palace, which is his designated place of stay. Similarly, following the relationship between an individual and their designated dwelling or place of confinement, a Convict is housed in a Prison.

Explanation

Since X is Y's sister and Z is Y's mother, Z is the mother of X as well. Since A is Z's father, A is X's maternal grandfather. Because X is female, her relationship to A is that of a daughter's daughter.

Explanation

The coding pattern shifts the first 2-letter pair of the word to the end (a cyclic left-shift of 2-letter blocks).

Dividing the original word into four 2-letter pairs gives (DU)(FU)(DF)(DD). Moving the first pair (DU) to the end results in (FU)(DF)(DD)(DU), which forms FUDFDDDU.

Applying the same pattern to COCACOCA: Divide into 2-letter pairs: (CO)(CA)(CO)(CA) Move the first pair (CO) to the end: (CA)(CO)(CA)(CO)

Combining the blocks yields CACOCACO.

Explanation

From the given statements, the set of leaves is entirely contained within the set of plants, which in turn is entirely contained within the set of gardens (Leaves ⊆ Plants ⊆ Gardens).

Universal affirmative statements of the form "All A are B" only validly convert to particular affirmative statements "Some B are A", but not "All B are A".

Conclusion 1 asserts that all gardens have leaves, whereas logically only some gardens have leaves. Conclusion 2 asserts that all gardens have plants, whereas logically only some gardens have plants. Both conclusions attempt an invalid reverse universal deduction from the larger set to the smaller set.

Explanation

The code logic moves the first three letters of the given word to the end of the string.

Applying this rule to EFKFKEKEFFEK: First three letters: EFK Remaining sequence: FKEKEFFEK

Shifting the first three letters to the end yields FKEKEFFEK + EFK = FKEKEFFEKEFK.

Explanation

Suraj's death is an outcome or effect. While experiencing depression over the loss of a spouse represents an ongoing emotional state and background condition, it is not the immediate or direct physical cause of a person dying on their way to the office. An immediate cause of death during a commute would be a specific event such as a sudden medical emergency or a road accident. Therefore, Event A is an effect, but Event B is not its immediate and principal cause.

Explanation

R. K. Narayan was an eminent Indian writer renowned for writing novels set in the fictional town of Malgudi. Similarly, his brother R. K. Laxman was a legendary Indian cartoonist, best known for creating the iconic character 'The Common Man' and his long-running daily cartoon strip 'You Said It' for The Times of India.

Explanation

The cow is the official national animal of Nepal. Similarly, the Royal Bengal Tiger is the national animal of India, making Tiger the correct term to complete the analogy.

Explanation

Violin is a stringed instrument (chordophone) that produces sound through the vibration of stretched strings played using a bow or plucked with fingers. In contrast, the other three instruments belong to the wind instrument family (aerophones) and generate sound through the vibration of air when blown into them.

Explanation

Replacing the operators according to the given conditions: '×' becomes '–' '–' becomes '+' '' becomes '×' '+' becomes '÷'

The expression transforms into: [ (15 – 10) + (3 × 5) ] ÷ (12 + 8) × 1

Evaluating the inner terms first: 15 – 10 = 5 3 × 5 = 15 12 + 8 = 20

Substituting these values into the expression: [ 5 + 15 ] ÷ 20 × 1 = 20 ÷ 20 × 1 = 1 × 1 = 1

Explanation

The positional values of U and Z are 21 and 26 respectively, representing a difference of +5 positions (21 + 5 = 26). All other letter-pairs follow a pattern where the second letter is located exactly +4 positions ahead of the first letter in the English alphabetical series (T + 4 = X, L + 4 = P, A + 4 = E).

Explanation

The series follows three distinct progression rules for each component: The numerical value increases by 4 in each step (3, 7, 11, 15, 19). The first letter advances by 3 positions in the alphabet (D=4, G=7, J=10, M=13, P=16). The second letter moves back by 1 position in the alphabet (T=20, S=19, R=18, Q=17, P=16).

Combining these three patterns, the correct terms in the series are 3DT, 7GS, 11JR, 15MQ, and 19PP. The term 11PS violates the pattern because the third position requires the term 11JR.

Explanation

The pattern of the series follows the relation T(n) = 2 × T(n-1) + (n - 1) for n ≥ 2, starting with T(1) = 5:

T(1) = 5 T(2) = 2 × 5 + 1 = 11 T(3) = 2 × 11 + 2 = 24 T(4) = 2 × 24 + 3 = 51 T(5) = 2 × 51 + 4 = 106 T(6) = 2 × 106 + 5 = 217

Replacing 53 with 51 satisfies the relation across all terms in the sequence.

Explanation

Circle is a two-dimensional (2D) plane geometric figure that lies entirely in a single plane and possesses length and width but no height or depth. In contrast, the other three figures are three-dimensional (3D) geometric solids that occupy space and have volume, defined by length, width, and height.

Explanation

The coding logic swaps adjacent pairs of letters from left to right:

MU becomes UM FA becomes AF SA becomes AS

Applying the same pattern to SONNET by dividing the word into pairs of two letters and reversing each pair:

SO becomes OS NN becomes NN ET becomes TE

Combining the transformed pairs yields OSNNTE.

Explanation

From the given family relationships, B and C are sisters. A is the son of B, while E is the son of C and D. Since A and E are children of two sisters, E is A's cousin. The problem explicitly states that E is in charge of interior decoration, making interior decoration the task assigned to A's cousin.

Explanation

A pedestal is an architectural base or platform designed to support a statue, column, or monument. It functions strictly as a stationary structural support in sculpture and building design, unlike pathways or routes intended for physical travel and transportation.

Explanation

From the given statements, the three genres are novels, essays, and poems. Since A is a novelist and B is not an essayist, C must be the essayist. This leaves poems as the genre written by B.

Since the book of essays is in Punjabi, C writes essays in Punjabi. Since the book of poems is in English, and B is the author of poems, B writes poems in English.

Explanation

G is the maternal grandmother of A and B, which means G's children consist of their maternal uncles (C and D) and their mother. Since F is the only daughter of G, F is the mother of A and B.

Explanation

The assertion that opening additional hospitals in village X is crucial directly implies that the existing healthcare facilities are inadequate to meet the population's needs, making assumption I implicit. Furthermore, establishing more hospitals expands the medical infrastructure, directly serving to fulfill the expanding healthcare demands and institutional requirements in village X, making assumption II implicit as well.

Explanation

In an English dictionary, words are ordered alphabetically from left to right, letter by letter. Comparing the words by their third and fourth letters, 'Aboriginal' begins with the sequence 'A-b-o-r', where the fourth letter 'r' comes alphabetically after 'a', 'i', and 'd'.

Explanation

Combining statements A and B establishes that all plastics are fruits and all plastics are books. Converting these universal affirmative statements directly gives Conclusion I (Some books are plastics) and Conclusion III (Some fruits are plastics). Combining the relation that all plastics are books with statement C (No books are trousers) proves that plastics and trousers have no elements in common, making Conclusion II (No trouser is a plastic) true. Conclusion IV does not follow because fruits are entirely contained within books, and no books are trousers.

Explanation

The pattern followed in the series for each component is:

First letter: Moves forward by 3 positions in alphabetical order: B (+3) → E (+3) → H (+3) → K.

Middle number: Represents consecutive perfect squares: 3² = 9, 4² = 16, 5² = 25, 6² = 36.

Last letter: Moves backward by 3 positions in alphabetical order: U (-3) → R (-3) → O (-3) → L.

Combining these components gives K36L.

Explanation

Each letter is coded by its corresponding numerical position in the English alphabet:

M = 13 I = 9 S = 19 S = 19 I = 9 O = 15 N = 14

Combining these position numbers in order gives 139191991514.

Explanation

When a person states that children share their feelings more with their friends than with their parents, the underlying premise is that children perceive their friends as more understanding of their emotions than their parents. This unspoken belief provides the reason for their preference in sharing feelings, making Assumption I implicit. Conversely, preferring to share feelings with friends does not mean children are not friendly with their parents, so Assumption II goes beyond the given statement and is not implicit.