Question

Jai Narayan sells two radio sets for 2288 each.

On one he gains 10% and on the other he loses
10%. Find his gain or loss per cent ?​

Answer 1

1%

Explanation:

S.P of each radio=$ 2288

Total S.P=
`2* 2288=`$4576

Gain=10%

Lose=10%

C.P=
`(S.P* 100)/(100+gain(in\;percent))`

C.P=
`(S.P* 100)/(100-loss(in\;percent))`

By using the formula

C.P of one radio=
`(2288* 100)/(110)=`$2080

C.P of another radio=
`(2288* 100)/(100-10)`=$2542.2

Total C.P of two radios=2080+2542.2=$4622.2

Total C.P >Total S.P

Loss=S.P-C.P

Loss=4622.2-4576=$46.2

Loss%=
`(Loss)/(C.P)* 100`

Loss %=
`(46.2)/(4622.2)* 100=`1%

Hence, his loss 1%