3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is ?

A) 5	B) 4
C) 7	D) 6

Answer & Explanation Answer: A) 5

Explanation:

Let the number be x. Then,

$3 x^{2}$ - 4x = x + 50

$3 x^{2}$ - 5x - 50 = 0

(3x + 10)(x - 5) = 0

x = 5

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Filed Under: Arithmetical Reasoning
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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16 17802

Q:

On which day in January, Subhas left for Germany ?

I. Subhas has so far spent 10 years in Germany.

II. Subhas friend Anil left for Germany on 15th February and joined Subhas 20 days after Subhass arrival.

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 even in both the statements together are not sufficient to answer the question

Answer & Explanation Answer: D) If the data even in both the statements together are not sufficient to answer the question

Explanation:

Clearly, even from both the given statements, we cannot conclude the exact date of Subhas leaving for Germany. .

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Filed Under: Data Sufficiency

42 17799

Q:

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

9, 16, 13, 12, 17, 8, ?, ?

A) 21, 4	B) 4, 21
C) 9, 12	D) 12, 18

Answer & Explanation Answer: A) 21, 4

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

3 17772

Q:

Frugal : Parsimonious :: ?

A) joy : ecstasy	B) rich : poor
C) love : hate	D) poor : misery

Answer & Explanation Answer: A) joy : ecstasy

Explanation:

Frugal and parsimonious are synonyms of each other and bear the meaning 'being stingy' or 'sparing'. Similarly, joy and ecstasy are related to happiness.

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Filed Under: Analogy
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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9 17764

Q:

Select the word which cannot be formed using the letters of the given word

REJUVENATION

A) JUTE	B) NATION
C) REVISION	D) NATIVE

Answer & Explanation Answer: C) REVISION

Explanation:

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

1 17752

Q:

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

1, 2, 4, 7, 11, ?

A) 16	B) 18
C) 20	D) 17

Answer & Explanation Answer: A) 16

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

7 17689

Q:

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

10, 12, 14, 16, 18, ?

A) 22	B) 24
C) 20	D) 26

Answer & Explanation Answer: C) 20

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

0 17688

Q:

Use the following passage for the questions based on it.

There are 6 flats on a floor in two rows. Out of these, three are north facing and the other three are south facing flats. The flats are to be allotted amongst Arun, Biswajyot, Chitra, Derek, Evan, and Fatima. Biswajyot gets a north facing flat and is not next to Derek. Derek and Fatima get diagonally opposite flats. Chitra is next to Fatima, and gets a south facing flat. Evan gets a north facing flat.

Except Derek and Fatima, which other pair is diagonally opposite to each other?

A) Arun and Biswajyot	B) Arun and Chitra
C) Evan and Derek	D) Evan and Chitra

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