Question

find a single discount equivalent to two successive discounts of 25% and 20%.

Answer 1

Intitally take 100 , 20% of 100 gives 80
25% of 80 gives 60



therefore 100 -60=40

40 might be the answer.

Answer 2

first
, let marked Price be 100
now, discount 1-25%of100=25
price after reduction =100-25=75
now,
discount 2=20%of 75=15
Price after reduction=75-25=50
then,
selling price=50
net discount=marked Price-selling price
100-50=50
therefore single discount equivalent two successive discount is 50%
hope it helps you