Question

7. What is the simple discount equivalent to two successive discounts of 50%
and 50%


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Answer 1

Answer: 75%

Step-by-step explanation:

let the amount be x then,

cost of it after first discount = x *(100-50)%

= x*50/100 = 1x/2

Then, cost it after second discount = 1x/2*(100-50)%

= 1x/2 *50/100 = 1x/4

So, x- 1x/4 = (4x-1x)/4 = 3x/4 is subtracted from the original amount.

3x/4/x = 3x/4x = 3/4 = 75% = ans.