NTA Logical Reasoning

Question 1

If all Bloops are Razzles and all Razzles are Lazzles, then all Bloops are definitely:

Accepted Answer

Lazzles

Answer

By the transitive property of syllogism, if Bloops⊆Razzles and Razzles⊆Lazzles, then Bloops⊆Lazzles.

Question 2

What comes next in the sequence: 2, 6, 12, 20, 30, ?

Accepted Answer

42

Answer

The differences are 4, 6, 8, 10, 12, so the next term is 30 + 12 = 42.

Question 3

A is taller than B; B is taller than C; D is shorter than A but taller than B. Who is the tallest?

Accepted Answer

A

Answer

Since A > D > B > C in height, A is the tallest.

Question 4

If FIRE = 6935 and WIND = 2974, what is FIND?

Accepted Answer

9724

Answer

F=6, I=9, R=3, E=5; W=2, I=9, N=7, D=4; so FIND = F(6), I(9), N(7), D(4) = 6974.

Question 5

Pointing to a woman, a man says, 'She is the daughter of the only child of my grandfather.' How is the woman related to the man?

Accepted Answer

Sister

Answer

The only child of his grandfather is his father/mother; the daughter of that person is his sister.

NTA - National Testing Agency Practice Test