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) : Red colour of blood is due to haemoglobin.

Reason (R) : Haemoglobin is a red pigment.

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: A) Both A and R are true and R is the correct explanation of A.

Explanation:

Haemoglobin is the blood pigment that imparts red colour to the blood.

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Filed Under: Assertion and Reason

3 12609

Q:

The positions of the first and sixth digits in the number 5109238674 are interchanged. Similarly the positions of the second and the seventh digits are interchanged and so on . which of the following will be the third digit from the right end after the after the rearrangement?

A) 9	B) 0
C) 6	D) 3

Answer & Explanation Answer: B) 0

Explanation:

There are 10 digits. Now, third digit from the right means (10-3+1 = ) 8th digit from the left. But, from the question , third and eighth digits are interchanged. Hence, the required digit is the third digit of the given number, ie 0.

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Filed Under: Number, Ranking and Time Sequence Test

43 12598

Q:

A, B, C, D and E are sitting in a row. B is between A and K Who among them is in the middle ?

I. A is left of 13 and right of D.

II.C is at the right end.

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:

Clearly, we have the order : A. a E. From I, we have the order : D, A, B. E.

From II, we get the complete sequence as D, A, B. E, C.

Clearly. B is in the middle. So, both I and II are required.

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Filed Under: Data Sufficiency

2 12595

Q:

Study the diagram given below and answer the questions based on it.

$△$ represents Persons who like Reading

$○$ represents Persons who like Cycling

$□$ represents Persons who like Trekking

How many persons like Trekking and Reading but not Cycling?

A) 12	B) 31
C) 44	D) 28

Answer & Explanation Answer: D) 28

Explanation:

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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

0 12574

Q:

Identify the diagram that best represents the relationship among the given classes.

Cricketer, Footballer, Indian

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

Answer & Explanation Answer: A) 1

Explanation:

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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

6 12556

Q:

In a row of boys, Haran is eleventh from the left and manoj is seventeenth form the right. When they exchange their places than Haran will be thirteenth from the left. Which of the following will be the new position of Manoj from the right ?

A) 11	B) 19
C) 13	D) 17

Answer & Explanation Answer: B) 19

Explanation:

exp.

Here total number of boys in the row = 11 + 19 = 13 + 17 = 30

Here after exchanging the places of Haran & Manoj

=> Manoj replaces Harans place of 11th from left

But in the question he asked Manoj's place from right = 30 - 11 = 19th place.

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

31 12539

Q:

Detect an error part labelled (1), (2), (3) & (4) in the following question.

$\frac{w h o l e n o r t h e r n s t a t e s i n}{(1)} / \frac{i n d i a a r e r e e l i n g u n d e r t h e}{(2)} / \frac{d e v a s t a t i n g}{(3)} / \frac{o f t h e d r o u g h t}{(4)}$

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

Answer & Explanation Answer: A) 1

Explanation:

Error is in the first part of the sentence. 'Whole' is used with singular nouns.
The correct sentence is - 'All Northern states in India are reeling under the devastating of the drought.

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Filed Under: Verification of Truth of the statement
Exam Prep: TOEFL , GRE , CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

19 12508

Q:

The following questions are based on the information given below

In a school of 4000 students 3000 know English, 2000 know French and 5000 know Hindi, 1500 know French and English, 300 know French and Hindi, 200 know English and Hindi and 50 know all the three languages.

How many know atleast one language?

A) 3500	B) 3000
C) 1850	D) 3550

Verbal Reasoning - Mental Ability Questions

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