Question

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

Answer 1

Step-by-step explanation:

C.P. of 1 apple =Rs.

9

9.60

=Rs.1.06

S.P. of 11 apples=Rs.12

∴ S.P. of 1 apple=Rs.

11

12

=Rs.1.09

∴ C.P. of 11 apples=Rs.1.06×11

C.P.=Rs.11.66

S.P. of 11 apples=Rs.12

∴gain=S.P.−C.P.

Gain =12−11.66

Gain =0.34

Gain%=

C.P.

Gain

×100

=

11.66

0.34

×100

Gain%=2.91%.

Answer 2

C.P of 9 apples = Rs. 9.60

S.P of 9 apples = Rs. 12

S.P > C.P, then it is profit/gain.

Profit

= S.P - C.P

= Rs. 12 - Rs. 9.60

= Rs. 2.40

Profit %

= P/C.P × 100

= 2.40/9.60 × 100

= 25 %

Hence, gain percentage = 25%