From the given alternatives, select the best answer which has the same relationship as in the 1st pair. Mosquito : Insect :: Frog : ?

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RRB NTPC Exam 25 Jan, 2021 click here to view all questions

From the given alternatives, select the best answer which has the same relationship as in the 1st pair. Mosquito : Insect :: Frog : ?

AAmphibian

BReptile

CMammal

DAvian

Akhilesh ? Apr 4 '25 at 22:13

correct answer is: option a (Amphibian)
Explanation: A mosquito belongs to the category of insects. Similarly, a frog belongs to the category of amphibians.

• Option a: Amphibian is the correct answer because frogs are amphibians.
• Option b: Reptile is incorrect because frogs are not reptiles.
• Option c: Mammal is incorrect because frogs are not mammals.
• Option d: Avian is incorrect because frogs are not avian (birds).

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Direction: Read the following information carefully to answer these questions. A $B means A is mother of B, A # B means A is father of B, A @ B means A is husband of B, A % B means A is daughter of B. If G$ M @ K, how is K related to G?

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Direction: Read the following information carefully to answer these questions. A $B means A is mother of B, A # B means A is father of B, A @ B means A is husband of B, A % B means A is daughter of B. If G$ M @ K, how is K related to G?

ADaughter-in-law

BMother-in-law

CDaughter

DAunt

Akhilesh ? Apr 4 '25 at 22:13

correct answer is: option a : Daughter-in-law [Daughter-in-law]
Explanation: Let's break down the relationship using the given symbols:
G $M @ K translates to: - G is the mother of M (G$ M)
- M is the husband of K (M @ K)
Therefore, K is the wife of M, and M is the son/daughter of G. Thus, K is the daughter-in-law of G.

• Option a: This is the correct answer as explained above.
• Option b: This is incorrect. G is the mother-in-law of K.
• Option c: This is incorrect. K is not the daughter of G.
• Option d: This is incorrect. K is not the aunt of G.

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Select the letter that can replace the question mark (?) in the following series? M, P, O, R, Q, T, S, ?

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Select the letter that can replace the question mark (?) in the following series? M, P, O, R, Q, T, S, ?

AR

BT

CV

DU

Akhilesh ? Apr 4 '25 at 22:13

correct answer is: option c (V)
Explanation: The series follows two alternating patterns. The first pattern adds 2 to the letter (M + 2 = O, O + 2 = Q, Q + 2 = S). The second pattern adds 2 to the letter (P + 2 = R, R + 2 = T, T + 2 = V). Therefore, the missing letter is V.

• Option a: R - Incorrect. R would fit if the previous letter in the series was P, not S.
• Option b: T - Incorrect. T fits the second pattern, but the missing letter should follow the second pattern which is obtained by adding two to the last letter that follows the second pattern.
• Option c: V - Correct. V fits as T + 2 = V
• Option d: U - Incorrect. U doesn't fit the pattern formed by adding two to the letters following either the first pattern or the second pattern.

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Directions: Study the following information carefully and answer the question based on it. Five friends are standing in a straight line. Sonam is near to Rahul and Mona is near Bilal. Karthik is at the left end of the line. Mona is second from the right. Sonam and Mona are adjacent to each other. Who is sitting in the middle?

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Directions: Study the following information carefully and answer the question based on it. Five friends are standing in a straight line. Sonam is near to Rahul and Mona is near Bilal. Karthik is at the left end of the line. Mona is second from the right. Sonam and Mona are adjacent to each other. Who is sitting in the middle?

ASonam

BMona

CBilal

DRahul

Akhilesh ? Apr 4 '25 at 22:13

correct answer is: option a (Sonam)
Explanation: Let's analyze the given information to determine the arrangement of the five friends:

• Karthik is at the left end: _Karthik_ _ _ _ _
• Mona is second from the right: _Karthik_ _ _ _ Mona_
• Sonam and Mona are adjacent: _Karthik_ _ _ Sonam Mona_ (since Mona is on the right, Sonam must be to her left)
• Sonam is near to Rahul: _Karthik_ _ Rahul Sonam Mona_
• The last position must be Bilal: _Karthik Bilal Rahul Sonam Mona_

Therefore, Sonam is sitting in the middle.

• Option a: Sonam is indeed in the middle, as derived above.
• Option b: Mona is second from the right, not in the middle.
• Option c: Bilal is second from the left, not in the middle.
• Option d: Rahul is to the left of Sonam, not in the middle.

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Which two numbers and two signs can be interchanged so as to balance the given equation ? 16 × 4 + 12 ÷ 4 - 15 = 59

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Which two numbers and two signs can be interchanged so as to balance the given equation ? 16 × 4 + 12 ÷ 4 - 15 = 59

A4 and 12; × and ÷

B16 and 12; + and -

C15 and 16; × and +

D12 and 15; ÷ and -

Akhilesh ? Apr 4 '25 at 22:32

correct answer is: OPTION b
Explanation: After swapping 16 and 12, and changing the + to
- and the
- to +, the equation becomes 12 × 4
- 16 ÷ 4 + 15, which equals 59.

• OPTION A: Results in 37, not 59.
• OPTION B: Results in 59, balancing the equation.
• OPTION C: Results in 47, not 59.
• OPTION D: Results in 55.75, not 59.

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