3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

24 ÷ 8 x 25 + 8 - 3 = 2

A) ÷ and -	B) x and -
C) + and ÷	D) - and +

Answer & Explanation Answer: B) x and -

Explanation:

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

1 21134

Q:

Arrange the following words as per order in the dictionary.

1. Preach
2. Praise
3. Precinet
4. Precept
5. Precede

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

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

Explanation:

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

0 21133

Q:

How is D related to A?

I. B is the brother of A.

II. B is D's son.

A) If the data in statement I alone are sufficient to answer the question	B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question;	D) If the data in both the statements together are needed.

Answer & Explanation Answer: D) If the data in both the statements together are needed.

Explanation:

From both the statements together, we find that D is the father of B and B is the brother of A. So,

D is the father of A.

Thus, both the given statements are needed.

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Filed Under: Data Sufficiency

16 21076

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 21064

Q:

What will be next number in the series?

0, 1, 4, 27, 16, 125, 36, ?

A) 343	B) 144
C) 72	D) 25

Answer & Explanation Answer: D) 25

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

8 21055

Q:

Arrange the following words as per order in the dictionary.

1. NEST 2. NECK 3. NEAT 4. NEAR

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

Answer & Explanation Answer: C) 4, 3, 2, 1

Explanation:

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

0 21048

Q:

Arrange the given words in the sequence in which they occur in the dictionary.

i. Next
ii. Noisy
iii. Neutral
iv. Neither

A) iii, iv, i, ii	B) i, iv, iii, ii
C) ii, iii, i, iv	D) iv, iii, i, ii

Answer & Explanation Answer: D) iv, iii, i, ii

Explanation:

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

0 21029

Q:

The following questions are based on the information given below:

Out of a group of 60 students, 25 play Cricket, 30 play Football, 24 play Volleyball, 10 play Cricket and Football, 9 play Cricket and Volleyball, 12 play Volleyball and Football and 5 play all the three.

How many students play exactly two games?

A) 7	B) 13
C) 5	D) 16

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