Mental Ability Questions and Answers (Aptitude and Reasoning)

1 .

There are six persons A. B, C, D, E and F. C is the sister of F. B is the brother of E's husband. D is the father of A and grandfather of F. There are two fathers, three brothers and a mother in the group. Who is the mother ?

A)

E

B)

C

C)

B

D)

A

Correct Answer : Option (A) - E

Explanation :

D is father of A and grandfather of F. So, A is father of F.

Thus. D and A are the two fathers. C is the sister of F So. C is the daughter of A.

Since there is only one mother, it is evident that E is the wife of A and hence the mother of C and F.

So, B is brother of A There are three brothers. So. F is the brother of C.

Clearly, A is E's Husband.

2 .

If Z = 52 and ACT = 48, then BAT will be equal to

A)

36

B)

39

C)

46

D)

49

Correct Answer : Option (C) - 46

Explanation :

In the given code, A = 2, B = 4, C = 6,.... , Z = 52.

So, ACT = 2 + 6 + 40 = 48 and BAT = 4 + 2 + 40 = 46

3 .

Pointing to a person, a man said to a woman, "His mother is the only daughter of your father." How was the woman related to the person ?

A)

Wife

B)

Mother

C)

Daughter

D)

Aunt

Correct Answer : Option (D) - Aunt

4 .

B M N G O P C Q R H S T F L U V W X Y A K Z D I E J

Counting from left if it is possible to make a meaningful word from the third and fifth letters from left, using each at least twice and third letter from right in sequence, only once , write the first letter of the word as your answer. If more than one such word can be formed write "M" as your answer, and if no word can be formed write 'X' as your answer.

A)

I

B)

M

C)

X

D)

O

Correct Answer : Option (D) - O

Explanation :

Specified letters from the left are N and O , and the letter from the right is I.

with these letters, according to the conditions given in the question , one Word ONION can be formed. Clearly , first letter of this word is O.

5 .

In a certain code language COMPUTER is written as RFUVQNPC. How will MEDICINE be written in that code language?

A)

EOJDEJFM

B)

EOJDJEFM

C)

MFEDJJOE

D)

MFEJDJOE

Correct Answer : Option (B) - EOJDJEFM

Explanation :

There are 8 letters in the word.

The coded word can be obtained by taking the immediately following letters of word, expect the first and the last letters of the given word but in the reverse order. That means, in the coded form the first and the last letters have been interchanged while the remaining letters are coded by taking their immediate next letters in the reverse order.

6 .

What is the next number of the following sequence ? 21, 77, 165, 285, ......

A)

437

B)

426

C)

415

D)

401

Correct Answer : Option (A) - 437

Explanation :

The series follow the rule :

21 = 5²-4

77 = 9²−4

165 = 13²−4

285 = 17²−4

5,9,13,17,21,(+4)...

In the same way next no. will be

21²−4 = 441 - 4 = 437

7 .

Introducing a man, a woman said, "He is the only son of my mother's mother". How is the woman related to the man ?

A)

Aunt

B)

Sister

C)

Niece

D)

Mother

Correct Answer : Option (C) - Niece

Explanation : My mother's mother — My grandmother: My grandmother's only son — My maternal uncle. So, the woman is man's niece.

8 .

Lethargic : Vital :: Trite : ?

A)

Slug

B)

Lazy

C)

Unique

D)

Skinny

Correct Answer : Option (C) - Unique

Explanation :

Lethargic means "sluggish", kind of inactive

Vital means full of energy, lively

So, they are antonyms.

So, for the 2nd part of the analogy, you are looking for a antonym to trite

Trite means lacking originality or freshness. Overused. Kind of like a cliche

So, an antonym could be original, unique, innovative.

9 .

A E C B % 7 D $ E B 5 C ? 3 D E 9 @ 2 #

If all the vowels are dropped from the above arrangement which of the following will be the twelth from the left end of the above arrangement?

A)

D

B)

@

C)

3

D)

9

Correct Answer : Option (A) - D

Explanation :

After dropping vowels we have the following arrangement:

C B % 7 D $ B 5 C ? 3 D 9 @ 2 #

Hence, D is twelth from the left end of the above arrangement.

10 .

Fill in the blanks with the appropriate words. Countries which _________ still undergoing the economic processes _________ known as developing countries.

A)

are, is

B)

is, are

C)

were, are

D)

are, are

Correct Answer : Option (D) - are, are

Mental Ability - Questions