A does 20% less work than B. If A can complete a piece of work in $${\text{7}}\frac{1}{2}$$hours, then B can do it in ?

A does 20% less work than B. If A can complete a piece of work in $${\

1.	A does 20% less work than B. If A can complete a piece of work in $${\text{7}}\frac{1}{2}$$hours, then B can do it in ?
A.	hours
B.	hours
C.	hours
D.	hours
Answer» D. hours