Numbers - General Aptitude

Q1:

If 60% of 3 of a number is 36, then the number is:
5

A 80

B 100

C 75

D 90

ANS:B - 100

Let the number be x. Then

60% of 3 of x = 36
5
60 x 3 x = 36
100 5
 x = 36 x 25 = 100
9
 Required number = 100