3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Which one of the following interchanges in signs and numbers would make the given equation correct?

3 + 5 - 2 = 4

A) + and -, 2 and 5	B) + and -, 3 and 4
C) + and -, 2 and 4	D) + and -, 3 and 5

Answer & Explanation Answer: D) + and -, 3 and 5

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

3 31650

Q:

What is Reena's rank in the class ?

I. There are 26 students in the class.

II. There are 9 students who have scored less than Reena.

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 I and II, we conclude that there are 16 students above Reyna in rank. Thus, Reenats rank is 17th in the class So, both the statements are necessary.

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Filed Under: Data Sufficiency

29 31591

Q:

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

57, 54, 48, 39, ?, 12

A) 27	B) 30
C) 25	D) 22

Answer & Explanation Answer: A) 27

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

2 31566

Q:

If the mathematical operator, '+' means 'x', '/' means '-', '-' means '+', and 'x' means '/', then the value of 11 +14 x7- 5 / 29 is

A) -5	B) -12
C) -7	D) -2

Answer & Explanation Answer: D) -2

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

2 31552

Q:

Find the quadratic equations whose roots are the reciprocals of the roots of $2 x^{2} + 5 x + 3$ ?

A) $3 x^{2} + 5 x + 2 = 0$

B) $5 x^{2} + 3 x + 2 = 0$

C) $3 x^{2} - 5 x - 2 = 0$

D) None

A) A	B) B
C) C	D) D

Answer & Explanation Answer: A) A

Explanation:

The quadratic equation whose roots are reciprocal of $2 x^{2} + 5 x + 3 = 0$ can be obtained by replacing x by 1/x.

Hence, 2(1/x)(1/x)+ 5(1/x) + 3 = 0

=> $3 x^{2} + 5 x + 2 = 0$

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Filed Under: Mathematical Operations
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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78 31548

Q:

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

30 ÷ 2 - 10 x 6 + 5 = 35

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

Answer & Explanation Answer: D) + and x

Explanation:

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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

1 31545

Q:

Which of the following terms follows the trend of the given list?

XXXXXXYY, XXXXXYXY, XXXXYXXY, XXXYXXXY, XXYXXXXY, _______________.

A) YXXXXXXY	B) XXXXXXYY
C) XYXXXXXY	D) XXXXXYXY

Answer & Explanation Answer: C) XYXXXXXY

Explanation:

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Filed Under: Alphabet Test
Exam Prep: Bank Exams

3 31515

Q:

In a certain code, TRIPPLE is written as SQHOOKD. How is EXOTIC coded in that code?

A) DWNHSB	B) DNWHSB
C) DWNSHB	D) DNWSHB

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