Question

Atul sold two mobiles for Rs.9900 each. At one mobile, he gained 10% and on other, he lost 10%. Find his gain or loss in a transaction?

Answer 1

Hello

Here is your answer


SP of mobile!Rs.9900
G% on one mobile=10%
CP of one mobile=
$\frac{sp \times 100}{100 + g}$
=
$\frac{9900 \times 100}{100 + 10}$
=
$\frac{990000}{110}$
=Rs.9000
CP of another mobile=
$\frac{sp \times 100}{100 - g}$
=
$\frac{9900 \times 100}{100 - 10}$
=
$\frac{990000}{90}$

=Rs.11000
SP of both mobiles=9900+9900=Rs.19800
CP of both mobiles =9000+11000=Rs.20000
Since CP>SP
Loss =CP-SP
=20000-19800
Loss=Rs.200