3100+ Mental Ability Reasoning Questions and Answers with Explanation

Q:

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

8, 16, 43, 107, 232, ?

A) 342	B) 448
C) 248	D) 528

Answer & Explanation Answer: B) 448

Explanation:

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Filed Under: Number Series
Exam Prep: Bank Exams

1 22340

Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative

Assertion (A) : Diamond is used for cutting glass.

Reason (R) : Diamond has a high refractive index.

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: B) Both A and R are true but R is NOT the correct explanation of A.

Explanation:

Diamond is very hard due to its rigid three dimensional structure and so, it is used for cutting glass. Refractive index of diamond is high and gives it the greater transparency and brilliance.

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Filed Under: Assertion and Reason

53 22321

Q:

Directions to solve :

Five boys are sitting on a bench to be photographed. Sachin is to the left of Ram and to the right of Bin. Monty is to the right of Ram. Rony is between Ram and Monty.

Who is in the middle of the photograph?

A) Bin	B) Ram
C) Rony	D) Sachin

Answer & Explanation Answer: B) Ram

Explanation:

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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

0 22266

Q:

In a certain code language , 'PROBLEM' is written as MPERLOB. How will 'PROBLEM' is written as MPERLOB. How will 'NUMBERS' be written in that code?

A) SNUREMB	B) SNRUBME
C) SNRUEMB	D) SNRUMEB

Answer & Explanation Answer: C) SNRUEMB

Explanation:

$\begin{matrix} 1 & 2 & 3 & 4 & 5 & 6 \\ P & R & O & B & L & E \end{matrix} \begin{matrix} 7 \\ M \end{matrix} \Rightarrow \begin{matrix} 7 & 1 & 6 & 2 & 5 & 3 \\ M & P & E & R & L & O \end{matrix} \begin{matrix} 4 \\ B \end{matrix}$

Similarly, $\begin{matrix} 1 & 2 & 3 & 4 & 5 & 6 \\ N & U & M & B & E & R \end{matrix} \begin{matrix} 7 \\ S \end{matrix} \Rightarrow \begin{matrix} 7 & 1 & 6 & 2 & 5 & 3 \\ S & N & R & U & E & M \end{matrix} \begin{matrix} 4 \\ B \end{matrix}$

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Filed Under: Coding and Decoding

106 22231

Q:

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

abaBABAB, AbabABAB, ABabaBAB, ABAbabAB, ABABabaB, _______________.

A) aBABABab	B) ABABAbab
C) abaBABAB	D) AbabABAB

Answer & Explanation Answer: B) ABABAbab

Explanation:

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Filed Under: Alphabet Test
Exam Prep: Bank Exams

1 22152

Q:

A cow was standing on a bridge, 5m away from the middle of the bridge. A train was coming towards the bridge from the ends nearest to the cow. Seeing this cow ran towards the the train and managed to escape when the train was 2m away from bridge. If it had run in the opposite direction, it would hit by the train 2m before the end of the bridge. What is the lenght of the bridge in meters assuming the speed of the train is 4 times that of cow ?

A) 22 mts	B) 28 mts
C) 32 mts	D) 34 mts

Answer & Explanation Answer: C) 32 mts

Explanation:

let 'b' be the Length of bridge from cow to the near end of the bridge and 'a' be the distance of the train from the bridge.
'x' be speed of cow => '4x' speed of train
Then the total length of the bridge 2b + 10.
(a-2)/4x = b/x
=> a-2 = 4b........(1)
Now if it had run in opposite direction
(a+2b+10-2)/4x = (b+10-2)/x
=> a - 2b = 24......(2)
Solving (1) and (2)
b = 11 ,
Therefore length of the bridge is 2 x 11 + 10 = 32mts.

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

64 22069

Q:

Teeth is to hen as nest is to

A) Gums	B) Lips
C) Mare	D) Mouth

Answer & Explanation Answer: C) Mare

Explanation:

The answer is 'mare' because a "mare’s nest" doesn't exist just like "hen's teeth" don't exist.

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

8 22020

Q:

517 325 639 841 792

What will be the first digit of the second highest number after the positions of only the 2nd, 3rd digits within each number are interchanged?

A) 8	B) 2
C) 7	D) 9

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