3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

In a certain office, 1/3 of workers are women, 1/2 of the women are married and 1/3 of the married women have children. If 3/4 of the men are married and 2/3 of the married men have children, what part of the workers are without children?

A) 5/18	B) 4/9
C) 11/18	D) 17/36

Answer & Explanation Answer: C) 11/18

Explanation:

Let the total number of workers be x. Then,

Number of women = x/3 and number of men = x - x/3 = 2x/3

Number of women having children = x/18

Number of men having children = x/3

Number of workers having children = (x/18) + (x/3) = 7x/18

Therefore, workers having no children = x - 7x/18 = 11/18 of all workers.

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

64 26462

Q:

Read the information carefully and answer the following questions

Six girls are sitting in a circle facing to the centre of the circle. They are Priya, Neha, Rashmi, Sonali, Tina and Veera. Tina is not between Neha and Sonali but some other one. Priya is next to the left of Veera. Rashmi is 4th to the Right of Priya.

Who is sitting just right to veera?

A) Priya	B) Tina
C) Rashmi	D) Neha

Answer & Explanation Answer: B) Tina

Explanation:

Tina is sitting immediate right to Veera.

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

1 26428

Q:

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

14 + 18 x 40 - 10 ÷ 20 = 66

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

Answer & Explanation Answer: D) ÷ and -

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 26418

Q:

Complete the number series?

11, 12.2, 14.6, 18.2, ?

A) 21.8	B) 23
C) 24.6	D) 25

Answer & Explanation Answer: B) 23

Explanation:

The given number series 11, 12.2, 14.6, 18.2, ?

11

11 + 1.2 = 12.2

12.2 + 2.4 = 14.6

14.6 + 3.6 = 18.2

18.2 + 4.8 = 23

Hence, the next number in the given number series is 23.

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Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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8 26406

Q:

If 'A $ B' means 'A is brother of B', 'A @ B'means 'A is wife of B', 'A # B' means 'A is daughter of B' and 'A & B'means 'A is father of B', then which of the following expressions indicates the relationship 'K' is father-in-law of H'?

A) H @ J $ L # P & K	B) H @ J $ P & L # K
C) H @ J $ L # K & P	D) H @ P $ J & L # K

Answer & Explanation Answer: C) H @ J $ L # K & P

Explanation:

K is the father-in-law of H means H is the wife of the brother (say, J) of the daughter (say, L) of K and K is a male (brother or father of some person, say P) i.e H @ J $ L # K $ P or H @ J $ L # K & P.

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Filed Under: Blood Relations

49 26371

Q:

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

15 x 4 + 10 - 10 ÷ 14 = 10

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

Answer & Explanation Answer: B) + and ÷

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

0 26369

Q:

Introducing a man to her husband , a woman said "His brother's father is the only son of my grandfather". How is the woman related to this man?

A) Mother	B) Aunt
C) Sister	D) Aunt

Answer & Explanation Answer: C) Sister

Explanation:

Only son of woman's grandfather - woman's father; Man's brother's father - Man's father

So, man's father is woman's father i.e woman is the man's sister.

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Filed Under: Blood Relations

68 26366

Q:

If 3@7 = 20, 8@1 = 18 and 6@5 = 22, then find the value of 4@4 = ?

A) 15	B) 16
C) 20	D) 29

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