Question

A does 20% less work than B. if A can finish a work in 15/2 hours. how much will B take to finish it? ​

Answer 1

I hope this will help you

Answer 2

Answer:

Ratio of percentage of work done by A and B = 80 : 100

Suppose B takes 'x' hours time to complete the work.

So,

⇒ 80 : 100 :: x : 15/2

⇒ 100x = 15/2*80

⇒ x = 600/100

⇒ x = 6 hours (Time taken by B)