Question

Find the single discount equivalent to a series discount of 20%, 10% and 5%.

Answer 1

HEYA!
here's your answer!

Let the initial price = 100 

10% discount = 100 x 10/100 = 10 
Remaining amount = 100 - 10 = 90 

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20% discount = 90 x20/100 = 18 

Remaining amount will be = 90 - 18 = 72 

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5% discount = 72 x 5/100 = 3.6
Total discount = 10+18+3.6 = 31.6%
Since the initial price is assumed as 100, the single equivalent discount = 31.6%

Hope this helps!

Answer 2

heya !

Be initial price = 100

10% D = 100 x 10/100
= 10
For Remaining amount
= 100 - 10
= 90


20% D = 90 x20/100 = 18

For Remaining amount = 90 - 18 = 72


5% D = 72 x 5/100
= 3.6

Total discount = 10+18+3.6
= 31.6%