51. If 4/5 of P is 48, what is 3/5

A. 12

B. 15

C. 20

D. 36

E. 60

When a equation uses 'of', it usually means multiplication and 'is' means equal.

4/5 x P = 48

However, you want to figure out what P is before answering 3/5.

(4/5) (P) = 48 Divide 4/5 by both side

P=60

Then you want to find what 3/5 of P is. Since we know what P is, we can figure out the answer.

X = 3/5 (60)

x = 36 so the answer is D.