3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative

Assertion(A) : Graphite is slippery and used as a lubricant.

Reason (R) : Graphite has free electrons.

A) Both A and R are true and R is the correct explanation of A.	B) Both A and R are true but R is NOT the correct explanation of A.
C) A is true but R is false.	D) A is false but R is true.

Answer & Explanation Answer: B) Both A and R are true but R is NOT the correct explanation of A.

Explanation:

Graphite possesses a layer structure with two successive layers held by weak forces and able to slide over one another. So, graphite is slippery and this property finds its use as a lubricant. In graphite, each carbon atom is linked to three other carbon atoms while one electron in the carbon atom is delocalised. So, graphite has free electrons

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Filed Under: Assertion and Reason

20 23397

Q:

Find the value of (?) in the series

3, 4, 6, 8, 12, ?, 18

A) 13	B) 14
C) 15	D) 16

Answer & Explanation Answer: B) 14

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

16 23381

Q:

In the following question, select the missing number from the given series.

59, 68, 78, 89, 101, ?

A) 116	B) 114
C) 118	D) 120

Answer & Explanation Answer: B) 114

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

1 23373

Q:

Arrange the following words as per order in the dictionary.

1.Launch 2. Laugh 3. Lattice 4. Latent 5. Latitude

A) 4,5,3,2,1	B) 4,3,5,1,2
C) 4,5,1,2,3	D) 4,5,1,3,2

Answer & Explanation Answer: A) 4,5,3,2,1

Explanation:

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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

0 23362

Q:

In a row, Kumar is at 7th place from the left and Pawan is at 9th place from the right. When they interchange the positions Kumar becomes 11th from left. How many were seated in the row ?

A) 19	B) 20
C) 21	D) 27

Answer & Explanation Answer: A) 19

Explanation:

Initialy from left 7th = kumar
from right 9th = pawan
Interchange kumar = 11th from left, from right kumar = 9th;
11+8 = 19;
8 is 1,2,3,4,5,6,7(pawan),8,9,10,11(kumar),12,13,14,15,16,17,18,19;
simply count the 9th place from right we will get total as 19.

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

35 23352

Q:

Use each of the following figures only once and form three groups. The three groups so formed are

A) (1,3,5), (2,6,8), (4,7,9)	B) (1,3,5), (2,7,8), (4,6,9)
C) (1,3,9), (2,6,8), (4,7,5)	D) (1,3,5), (2,6,9), (4,7,8)

Answer & Explanation Answer: A) (1,3,5), (2,6,8), (4,7,9)

Explanation:

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

0 23134

Q:

In the following question, select the missing number from the given series.

113, 116, 119, 122, 125, ?

A) 128	B) 126
C) 129	D) 130

Answer & Explanation Answer: A) 128

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

5 23101

Q:

In the given figure, how many pens are blue?

A) 23	B) 19
C) 12	D) 15

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