Question

Find the single discount in percentage which is equivalent to two successive discounts of 25% and 20% given on an article​

Answer 1

Answer : 40%

Let the marked price of object on discount be = y

D 1 = 25%

D 2 = 20%

Then, value of object on D 1 = 75% × y

value of same object on D 2 = (75% • y × 80%)

Now, final value of the object = (75 × 80 / 10000) × y

= 600 / 1000

= 60%

Final Discount = y - final value

= 100 - 60

= 40 %