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

Explanation

Each letter in the word is shifted forward by 2 positions in the alphabetical order:

P + 2 = R, L + 2 = N, A + 2 = C, N + 2 = P, T + 2 = V H + 2 = J, E + 2 = G, R + 2 = T, B + 2 = D

Applying the +2 pattern to FLOWER: F + 2 = H L + 2 = N O + 2 = Q W + 2 = Y E + 2 = G R + 2 = T

Explanation

To achieve the goal of passing the exam in 10 days by studying effectively for 6 hours daily, Ritu needs to organize her overall study schedule efficiently. Planning time ahead and allocating adequate attention to every subject is a direct, practical, and constructive step that ensures the required 6 hours of daily study are used productively to pass the exam.

Explanation

When moving to the right from a position measured from the left, the positions are added: 20 + 5 = 25th letter from the left. The 25th letter of the English alphabet is Y.

Explanation

Eden Gardens in Kolkata is a famous international cricket stadium and sports venue, whereas the others are public parks and gardens.

Explanation

The difference between consecutive terms in the series increases by 4 each time:

6 - 2 = 4 14 - 6 = 8 26 - 14 = 12 42 - 26 = 16

The next difference will be 16 + 4 = 20. Adding 20 to the last term gives 42 + 20 = 62.

Explanation

Predicting refers to foreseeing or stating something regarding the future. In the same way, recalling refers to remembering or bringing to mind an event or information from the past.

Explanation

Conclusion 1 assumes that banning non-biodegradable plastic guarantees humanity will avoid extinction, which introduces external assumptions not supported by the given statement. Conclusion 2 states that humanity will not be impacted, which contradicts the premise of environmental threats described in the statement and is unsupported by the given text. Since both conclusions make claims beyond the scope and logical limits of the provided statement, neither conclusion logically follows.

Explanation

Arranging the letters B, A, R, E in alphabetical order gives A, B, E, R.

Words starting with 'A' are formed using the remaining 3 letters (B, E, R) in 3! = 6 ways. So, 6 words appear before any word starting with 'B'.

Words starting with 'B' in dictionary order: 7th position: B A E R 8th position: B A R E

Thus, the word 'BARE' appears at the 8th position.

Explanation

The pattern in the given series is obtained by multiplying each term by 2 and adding consecutive natural numbers:

3 × 2 + 1 = 7 7 × 2 + 2 = 16 16 × 2 + 3 = 35 35 × 2 + 4 = 74

Explanation

Y is the daughter of Z's sister, making Z's sister Y's mother. Since D is Y's maternal grandfather, D is the father of Y's mother, which means D is the father of both Z's sister and Z. Since "I" am married to Z, D is my husband's father, making me D's daughter-in-law.

Explanation

To find the student standing in the third position, we can analyze the given conditions step by step:

1. "C is standing behind D" means C is immediately behind D, forming the pair (D, C).
2. "A is not ahead of B" means A is standing behind B, which translates to A being immediately behind B, forming the pair (B, A).
3. "A is standing ahead of C" places the pair (B, A) somewhere in front of the pair (D, C), giving the sequence B, A, D, C.
4. "E is not standing behind B" means E cannot be placed immediately behind B, which places E at the very front of the queue.

The final arrangement from front to back (1st to 5th) is E, B, A, D, C. Therefore, A is standing in the third position.

Explanation

The pattern replaces each letter with its reverse alphabetical counterpart, where the sum of positional values of opposite letters equals 27.

L (12) + O (15) = 27 I (9) + R (18) = 27 V (22) + E (5) = 27 E (5) + V (22) = 27

Applying the same rule to PRAY: P (16) -> 27 - 16 = 11 (K) R (18) -> 27 - 18 = 9 (I) A (1) -> 27 - 1 = 26 (Z) Y (25) -> 27 - 25 = 2 (B)

Explanation

Counting the total losses for each team:

Pakistan lost 2 times to South Africa and 2 times to Bangladesh, totaling 4 losses. South Africa lost 2 times to Bangladesh, making 2 losses. England lost 2 times to South Africa, making 2 losses. Bangladesh lost 2 times to England, making 2 losses.

With 4 total losses, Pakistan accumulated more losses than any other team.

Explanation

√9 simplifies to 3, which is a rational number (and a positive integer). The square root of a perfect square yields a rational number, whereas the square root of any non-perfect square is an irrational number.

Explanation

Each letter of the word is shifted forward by 2 positions in the English alphabetical series: S becomes U, T becomes V, U becomes W, D becomes F, E becomes G, N becomes P, and T becomes V. Applying this positional shift to STUDENT yields UVWFGPV.

Explanation

Using the BODMAS rule, replacing '?' with '×' gives: (4 × 3) - 12 ÷ 4 + 2 = 12 - 3 + 2 = 9 + 2 = 11

Since the evaluated value equals 11, the multiplication operator (×) correctly satisfies the given equation.

Explanation

The coding follows distinct rules for consonants and vowels:

Consonants in order of appearance are shifted sequentially by -1, +1, -1, and so on. Vowels follow the cyclic sequence A, E, I, O, U. Odd-numbered vowels (1st, 3rd) move to the next vowel, while even-numbered vowels (2nd) move to the previous vowel.

Applying these rules to DEBATE: D (1st consonant): D - 1 = C E (1st vowel): next vowel after E = I B (2nd consonant): B + 1 = C A (2nd vowel): previous vowel before A = U T (3rd consonant): T - 1 = S E (3rd vowel): next vowel after E = I

Combining the coded letters gives CICUSI.

Explanation

Number positions 1 to 8 in an anti-clockwise order facing the centre.

Placing F at position 1, A sits third to the right of F at position 4.

Two persons sit between F and D. Since position 4 is already occupied by A, D must sit at position 6.

H is not an immediate neighbour of A (positions 3 and 5) or F (positions 2 and 8), so H must sit at position 7.

With three persons between H and G, G sits directly opposite H at position 3.

C sits second to the left of E. Placing E at position 2 puts C at position 8 (leaving position 5 for B).

The complete anti-clockwise order starting from position 1 is F, E, G, A, B, D, H, C. Moving three positions to the right of D (position 6) reaches position 1, where F is seated.

Explanation

The given sequence consists of two interleaved sub-series at alternate positions:

Odd-positioned terms (1st, 3rd, 5th, 7th, 9th, 11th, 13th) form an arithmetic progression with a common difference of +4: 1, 5, 9, 13, 17, 21, 25 (since 21 + 4 = 25).

Even-positioned terms (2nd, 4th, 6th, 8th, 10th, 12th) form a geometric progression where each term is multiplied by 2: 2, 4, 8, 16, 32, 64 (since 32 × 2 = 64).

The 12th term belongs to the even-position series (32 × 2 = 64), and the 13th term belongs to the odd-position series (21 + 4 = 25), giving the next two terms as 64 and 25.

Explanation

Clouds produce rain as a natural physical output or result. Similarly, grief is an emotion that produces tears as a natural physical expression or result.

Explanation

The statement directly links rapid population growth in developing countries with the depletion of natural resources. This establishes a clear relationship between demographic expansion and resource sustainability, indicating that controlling population growth and preserving natural resources are critical issues. Therefore, managing natural resources and population growth logically emerge as major challenges facing developing countries.

Explanation

Combining statement 1 (All buildings are rooms) and statement 2 (No room is a tower) directly yields that no building can be a tower, as all buildings lie inside the set of rooms which shares no elements with towers. Thus, conclusion A logically follows.

Statement 3 (Some towers are poles) guarantees that the poles which are towers cannot be rooms or buildings. However, the remaining poles that are not towers could potentially be rooms or buildings, so conclusions B and C do not necessarily hold.

Explanation

Let the woman's mother be M. The daughter-in-law of M is the wife of M's son, who is Rita's father. Rita is the daughter of this daughter-in-law. Since the woman is also the daughter of M, she is the sister of Rita's father. Therefore, the woman is Rita's paternal aunt.

Explanation

Conclusion II follows directly from statements 2 and 3: since all silk cloths are contained within woolen cloths, and no woolen cloth is a nylon cloth, no silk cloth can be a nylon cloth.

Conclusion III follows from statements 1 and 2: since some cotton cloths are silk cloths and all silk cloths are woolen cloths, those cotton cloths that are silk cloths are necessarily woolen cloths as well.

Conclusion I does not follow because the condition that no woolen cloth is a nylon cloth does not compel any overlap between cotton cloths and nylon cloths.

Explanation

P, Q, R, S face North and A, B, C, D face South, sitting in four positions (1 to 4 from left to right).

Since R is at one end and S is sitting second to the right of R, R is at position 1 and S is at position 3 facing North. D faces S, placing D at position 3 facing South.

C is not at an end, so C is at position 2 facing South. B is sitting next to D, so B is at position 4 facing South, placing A at position 1 facing South.

P does not face C, so P is at position 4 facing North, leaving Q at position 2 facing North.

The person sitting second to the right of Q (position 2) is P at position 4. The person facing P is B.

Explanation

Advice or recommendations are given under the premise that the current behavior needs guidance or correction, which implies that people generally spend time dwelling on the past and future. Furthermore, advising a focus on the present inherently assumes that focusing on the present holds greater value and importance than focusing on the past or future. Therefore, both the existing tendency of people and the higher importance of the present are underlying assumptions behind the statement.

Explanation

The pattern followed in the given series is multiplying each term by consecutive integers starting from 4, and then adding 6:

6 × 4 + 6 = 30 30 × 5 + 6 = 156 156 × 6 + 6 = 942

Explanation

Interchanging the signs ÷ and - in the original equation gives:

25 - 5 + 15 ÷ 3 × 5

Applying the BODMAS rule: Division: 15 ÷ 3 = 5, giving 25 - 5 + 5 × 5 Multiplication: 5 × 5 = 25, giving 25 - 5 + 25 Addition and Subtraction: 25 - 5 + 25 = 45

This matches the right-hand side value of 45.

Explanation

Tennis is an individual or doubles racket sport played on a court between two opposing players (singles) or two opposing pairs (doubles). It differs from the rest because it is an individual or dual sport rather than an eleven-a-side outdoor team sport played on a large field.

Explanation

Sabarmati Ashram in Ahmedabad, Rajghat (Rajhat) in New Delhi, and Mani Bhawan in Mumbai are all historic locations directly associated with Mahatma Gandhi as his former residences or memorial site. Rajpath in New Delhi is a major ceremonial avenue used for national events such as the annual Republic Day parade, making it unrelated to Gandhi's life or memorial.

Explanation

The series follows the pattern n³ - n² (or n² × (n - 1)) for decreasing integer values of n starting from 7:

7³ - 7² = 343 - 49 = 294 6³ - 6² = 216 - 36 = 180 5³ - 5² = 125 - 25 = 100 4³ - 4² = 64 - 16 = 48 3³ - 3² = 27 - 9 = 18

Explanation

Comparing the words letter by letter from left to right, all words share the initial prefix "Cal". At the fourth letter position, "c" precedes "e" and "f" in the alphabet. Between words starting with "Calc", "Calculate" forms the complete root of "Calculation", and shorter root words always precede their extended forms with additional suffixes in dictionary ordering.

Explanation

Combining the statements "All planes are trains" and "All trains are cars" gives "All planes are cars". The universal affirmative proposition "All planes are cars" logically converts to "Some cars are planes", which makes conclusion 2 valid. On the other hand, there is no definite link established between planes and buses in the statements, so conclusion 1 does not follow.

Explanation

The pattern follows an addition of 6 to the alphabetical position of each letter.

B (2nd letter) + 6 = H (8th letter) P (16th letter) + 6 = V (22nd letter)

Applying the same logic to N: N (14th letter) + 6 = T (20th letter)

Explanation

The series is formed by applying distinct rules to each component:

The first letter advances by 2 positions in alphabetical order: J (+2) = L, L (+2) = N, N (+2) = P.

The second letter moves backward by 3 positions in alphabetical order: X (-3) = U, U (-3) = R, R (-3) = O.

The numerical part follows an alternating pattern of subtracting 1 and multiplying by 3: 5 - 1 = 4, 4 × 3 = 12, 12 - 1 = 11.

Combining these three components gives PO11.

Explanation

B is female and works in office N, C is female and works in office K, D works in office L, and F works in office M. The two remaining offices are O and P, which must be assigned to the two remaining persons, A and E. Since E is male (husband of B) and no man works in office O, E cannot work in office O. Therefore, E must work in office P.

Explanation

The elements in the series represent the even-numbered months of the year, formed by combining the first letter of the month name, the total number of days in that month, and the last letter of the month name:

April (4th month): First letter A, 30 days, last letter L gives A30L June (6th month): First letter J, 30 days, last letter E gives J30E August (8th month): First letter A, 31 days, last letter T gives A31T October (10th month): First letter O, 31 days, last letter R gives O31R

Following this pattern, the next term corresponds to December (12th month): First letter D, 31 days, last letter R, which yields D31R.

Explanation

An artist uses a canvas as the surface to create painting or artwork. Similarly, a painter uses a wall as the surface to apply paint. The relationship represents the medium or surface and the professional who works on it.

Explanation

A slice is a standard individual portion or unit into which bread is cut and served. Similarly, a scoop is a standard individual portion or unit into which ice cream is divided and served.

Explanation

Chocolate is a cocoa-based food product made from the seeds of the cacao tree, whereas the other three items are dairy products derived directly from milk.

Explanation

The pattern in the series is based on consecutive differences that increase by 5 at each step:

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

The sequence of differences is 5, 10, 15, 20. Adding 10 to the second term (8) gives 18.

Explanation

Combining the statements "Some candies are chocolates" and "All chocolates are lollipops" shows that the portion of candies that are chocolates must also be lollipops. This directly yields "Some lollipops are candies", making conclusion II logically valid.

Conclusion I is a negative conclusion, whereas all given statements are affirmative. A definite negative conclusion cannot be derived from purely affirmative premises.

Explanation

The Green Revolution refers to a series of initiatives that significantly increased agricultural production through high-yielding variety seeds and modern techniques. Similarly, the White Revolution, also known as Operation Flood, was launched in India to drastically increase the production and supply of milk and dairy products.

Explanation

Statement 3 explicitly asserts that no batman is a rabbit, meaning there is zero overlap between the set of batmen and the set of rabbits. Consequently, it is logically impossible for any batman to be a rabbit. The statement that some batmen are both men and rabbits directly contradicts Statement 3 and therefore cannot logically follow from the given statements.

Explanation

Each letter in the word is shifted forward by 2 positions in alphabetical order (+2):

T (+2) → V I (+2) → K G (+2) → I E (+2) → G R (+2) → T

Applying the same pattern to FOX: F (+2) → H O (+2) → Q X (+2) → Z

Explanation

Statement III establishes that all tea sold at this tea stall is very aromatic and tasty. Statement I confirms that a portion of the tea sold at this stall is Tata Tea. Since all tea sold at the stall is tasty, any Tata Tea sold at the stall must inherently be very tasty, making conclusion (iii) logically valid. Conclusion (i) does not logically follow because the statement that some tea is Tata Tea does not guarantee that there is tea which is not Tata Tea. Conclusion (ii) directly contradicts Statement II, which states that no Ahmet Tea is sold at this stall. Therefore, only conclusion (iii) logically follows.

Explanation

The given series follows an arithmetic progression with a constant common difference of 18:

98 + 18 = 116 116 + 18 = 134 134 + 18 = 152 152 + 18 = 170

Explanation

The given series follows a subtract-3 pattern for both letters based on their alphabetical positions:

For the first letter: p(16) − 3 = m(13), m(13) − 3 = j(10), j(10) − 3 = g(7), g(7) − 3 = d(4), and d(4) − 3 = a(1).

For the second letter: j(10) − 3 = g(7), g(7) − 3 = d(4), d(4) − 3 = a(1), a(1) − 3 = x(24), and x(24) − 3 = u(21).

Combining the final letters yields au.

Explanation

Ramesh's grandfather's only son refers to Ramesh's father. The only child of Ramesh's father is Ramesh himself. Since Jameela is married to that child, Jameela is Ramesh's wife, making Ramesh her husband.

Explanation

Faheema's mother is Aziza, and Asma is Aziza's mother. As Suresh is the son-in-law of Asma, he is married to Asma's daughter, Aziza. Since Aziza is Faheema's mother, her husband Suresh is Faheema's father.