Question

A shopkeeper purchase 12 balloon for 10 ruppees and sell them at 10 balloons for 12 rupees he earns profit for

Answer 1

C.P of 12 balloons = 10
C.P of 1 balloon = 10/12 = 5/6
S.P of 10 balloons = 12
S.P of 1 balloon = 12/10 = 6/5
Profit = S.P - C.P
= 6/5 - 5/6
= (36 - 25)/30
= 11/30
Profit % = ( Profit/C.P ) × 100
= {(11/30)/(5/6)} × 100
= (11/30) × (6/5) × 100
= 44%

Answer 2

C.P of 12 balloons = 10

C.P of 1 balloon = 10/12 = 5/6

S.P of 10 balloons = 12

S.P of 1 balloon = 12/10 = 6/5

Profit = S.P - C.P

= 6/5 - 5/6

= (36 - 25)/30

= 11/30

Profit % = ( Profit/C.P ) × 100

= {(11/30)/(5/6)} × 100

= (11/30) × (6/5) × 100

= 44%