Question

If a is 60% of b, b is 40% of c, and c is 20% of d, then what percent of 20a, is 6d

Answer 1

Let d=1000

Then

c= 200

b=80

a=48

6a= 6000

20a=960

what percent of 20a, is 6d?

6000/960*100

= 625%