Question

A boy buys 9 apples for Rs 9.60 and sells them at 11 for Rs 12. Find the gain or loss percent.

Answer 1

CP of 9 apples = 9.60
CP of each apple = 9.60/9 =16/15
SP of 11 apples = 12
SP of each apple = 12/11
Comparing both 12/11 and 16/15. 12/11 is bigger.
So, he got profit.
Profit = 12/11 - 16/15
= 180 - 176/165
= 4/165
Profit percentage = profit /CP*100
= 4/165÷16/15*100
= 4/165*15/16*100
= 25/11
= 2.2727……%

Answer 2

C.P ;
= 9.60/9
= 16/15 Rs per apple

S.P ;
= 12/11 Rs. per apple

Profit %
= (12/11)÷ (16/15)÷(16/15) × 100
= (180-176/165) × 15×100/16
= 4×15×100/165×16
= 300/132
= 25/11
= 2.27 %



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