If 6 is 24% of a number, what is 40% of the same number?

(A) 8
(B) 10
(C) 15
(D) 20
(E) 25

Q. If 20 is 16% of a number, what is 40% of the same number?
(A) 10
(B) 20
(C) 30
(D) 40
(E) 50

Q. If 50 is 25% of a number, what is 60% of the same number?
(A) 100
(B) 110
(C) 120
(D) 130
(E) 140

Answers:
1. (B) 10
2. (E) 50
3. (C) 120