3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

Who among Siddhartha, Nikunj, Vipul and Mukul is the youngest ?

I. Vipul is younger than Mukul but older than Siddhartha and Nikunj.

II. Mukul is the oldest.

III. Siddhartha is older than Nikuw.

A) Only I	B) I and II together
C) II and III together	D) I and III together

Answer & Explanation Answer: D) I and III together

Explanation:

From I, we have : M>V, V> S, V > N.

From II. we have : Mukul is the oldest.

From 111, we have : S > N Combining (I) and (III) we get : M> V, V >S>N or M > V> S > N.

Clearly, Nikunj is the youngest.

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Filed Under: Data Sufficiency

4 12259

Q:

Five plays K, L, M, N and O are to be staged from Monday to Friday of a week. On each day, only one play will be staged. N or O should not be either the first or last to be staged. O should be immediately followed by M. L should be staged immediately after N. One play is staged between K and L.

Which is the second play to be staged ?

A) L	B) O
C) M	D) N

Answer & Explanation Answer: D) N

Explanation:

O should be immediately followed by M ie, the order OM should be followed. N should be immediately followed by L ie, the order NL should be followed. One play is staged between k and L and N or O should not be the first or last play. So, the order is

Monday K

Tuesday N

Wednesday L

Thursday O

Friday M

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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams , CAT , GATE
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35 12237

Q:

Microphone : Loud :: Microscope : ?

A) Investigate	B) Magnify
C) Examine	D) Elongate

Answer & Explanation Answer: B) Magnify

Explanation:

As Microphone makes sound louder similarly Microscope makes the object magnified.

Hence, Microphone : Loud :: Microscope : Magnify.

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Filed Under: Analogy
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

5 12130

Q:

Which of the following is fifth to the right of the twelth digit from the right end of the below arrangement?

1 8 5 9 4 7 1 2 5 8 3 6 5 9 2 7 6 4 5 2 9 2 6 4 1 2 3 5 1 4 2 8 3

A) 3	B) 1
C) 2	D) 7

Answer & Explanation Answer: A) 3

Explanation:

5th to the right of 12th digit from the right end means (12 - 5 = ) 7th digit from the right.ie 3.

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Filed Under: Number, Ranking and Time Sequence Test

13 12009

Q:

Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers ?

A) 12 & 7	B) 13 & 8
C) 15 & 10	D) 14 & 9

Answer & Explanation Answer: A) 12 & 7

Explanation:

x – y = 5

4x – 6y = 6

x = 12 y = 7

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Filed Under: Arithmetical Reasoning
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10 12009

Q:

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

Electrons, Nucleus, Neutrons

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

Answer & Explanation Answer: B) 2

Explanation:

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Filed Under: Logical Venn Diagram
Exam Prep: Bank Exams

0 12003

Q:

Find the odd man out of the series 888, 440, 216, 104, 48, 22, 6 ?

A) 104	B) 48
C) 22	D) 216

Answer & Explanation Answer: C) 22

Explanation:

In the given series,

2nd term = $\frac{1 s t t e r m - 8}{2} = \frac{888 - 8}{2} = 440$

3rd term = $\frac{2 n d t e r m - 8}{2} = \frac{440 - 8}{2} = 216$

and so on...

Here 6th term = $\frac{5 t h t e r m - 8}{2} = \frac{48 - 8}{2} = 20$

Therefore, 22 is wrong.

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Filed Under: Number Series
Exam Prep: Bank Exams
Job Role: Bank Clerk

26 11960

Q:

In a class of 60 students where girls are twice that of boys, Laxmi ranked 27th from the top. If there are 9 boys ahead of Laxmi, how many girls are after her rank ?

A) 23	B) 21
C) 22	D) 24

Answer & Explanation Answer: C) 22

Explanation:

Given number of girls are twice that of boys.

--> G=2B and G+B = 60

Therefore, G=40 and B= 20

Given Laxmi ranked 27th from the top and 9 boys are ahead of Laxmi.

Therefore, There are 17 girls ahead of Laxmi.

Therefore, Number of girls who ranked after Laxmi = 40 - (17+1) = 22.

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Filed Under: Sequential Output Tracing
Exam Prep: Bank Exams
Job Role: Bank PO

49 11953

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