Aptitude and Reasoning Mental Ability Questions and Answers

1 .

A)

291

B)

322

C)

354

D)

378

Correct Answer : Option (D) - 378

Explanation : Sum of digits of the first number is 2 more than the sum of digits of the second number.

2 .

Rotate : Energy :: Stop : ?

A)

Inertia

B)

Spin

C)

Break

D)

None of the above

Correct Answer : Option (A) - Inertia

Explanation : To rotate is to energy to stop is to inertia. From the definition itself we know that inertia is a property by virtue of which a body continues to be in the state of rest or in state of motion. So over here whenever energy is supplied then the body starts to move that is a displacement is there and it is rotating where as whenever the body is stopped an inertia of rest is created.

So, Rotate : Energy :: Stop : Inertia.

3 .

If A + B = 2C and C + D = 2A, then

A)

A + C = 2B

B)

A + C = 2D

C)

A + C = B + D

D)

A + D = B + C

Correct Answer : Option (C) - A + C = B + D

Explanation :

A + B = 2C ----(i)

C + D = 2A ----(ii)

Adding (i) and (ii) we get : A + B + C + D = 2C + 2A

=> B + D = A + C

4 .

Modern : Antiquated :: Weak : ?

A)

Puny

B)

Strong

C)

Fragile

D)

Inadequate

Correct Answer : Option (B) - Strong

Explanation :

Modern is used to refer to something new whereas antiquated is used with respect to something old.

In other words, both terms are the opposite of each other.

From the above analysis, the missing word should be a word that represents the opposite of weak. Strong is used to with great influence. Therefore, the apt word is strong or any synonym of strong like potent, powerful, keen,...

5 .

Roja ranks 18th in a class of 49 students. What is rank from the last ?

A)

31

B)

32

C)

33

D)

34

Correct Answer : Option (B) - 32

Explanation :

Number students behind the roja in rank = (49 - 18) = 31

Roja is 32nd from the last

6 .

7 is to 34 as 5 is to

A)

24

B)

29

C)

33

D)

41

Correct Answer : Option (D) - 41

Explanation :

We can get this by any of two explanations.

Answer 1 : 41

7 = 3 + 4 = 34

Similarly, 5 = 4 + 1 = 41

Answer 2 : 41

7 - 3 = 4 => 34

Similarly, 5 - 4 = 1 => 41

7 .

Pointing to a girl in the photograph, Amar said, "Her mother's brother is the only son of my mother's father." How is the girl's mother related to Amar ?

A)

Aunt

B)

Sister

C)

Mother

D)

Grandmother

Correct Answer : Option (A) - Aunt

Explanation :

Only son of Amar's mother's father — Amar's maternal uncle.

So, the girl's maternal uncle is Arnar's maternal uncle. Thus, the girl's mother is Amar's aunt.

8 .

How many meaningful English words can be formed with the letters ESRO using each letter only once in each word?

A)

One

B)

Two

C)

Three

D)

None

Correct Answer : Option (C) - Three

Explanation :

Meaningful words are ROSE, SORE and EROS.

Note the meaning of the words SORE and EROS with the help of dictionary.

9 .

If MADRAS can be written as NBESBT, how can BOMBAY be written in that code ?

A)

CPOCBZ

B)

CQOCBZ

C)

CPNCBZ

D)

CPNCBX

Correct Answer : Option (C) - CPNCBZ

Explanation : Each letter in the word is moved one step forward to obtain the corresponding letter of the code.

10 .

Rita told Mani, "The girl I met yesterday at the beach was the youngest daughter of the brother-in-law of my friend's mother." How is the girl related to Rita's friend ?

A)

Niece

B)

Cousin

C)

Friend

D)

Daughter

Correct Answer : Option (B) - Cousin

Explanation :

Daughter of brother-in-law — Niece;

Mother's niece — Cousin.

So, the girl is the cousin of Rita's friend.