Question

. Find a single discount equivalent to a discount series
of 10%, 15% and 20%.
(1) 45% (2) 38.8% (3) 43.8%
(4) 39.8%
(5) None of these

Answer 1

Answer:

38.8%

Step-by-step explanation:

Consider 100/-

A discount of 10% would save you 10/-, leaving you with 90/-

Another discount, of 15% this time would be on 90/-

90 x 15/100 = 13.5. Hence money left is (90-13.5) = 76.5

Now, a discount of 20% on 76.5/- = 76.5 x 20/100 = 15.3/-

Hence total discount = sum of total money saved(in this scenario when you work with base 100/-)

= 15.3 + 13.5 + 10

= 38.8

= 38.8% of the original price.

Hence the discount is 38.8%

Correct me if Im wrong