Problems on Numbers - General Aptitude

Q1:

If one-third of one-fourth of a number is 15, then three-tenth of that number is:

A 35

B 36

C 45

D 54

ANS:D - 54

Let the number be x.

Then, 1 of 1 of x = 15      x = 15 x 3 x 4 = 180.
3 4
So, required number = 3 x 180 = 54.
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