Ankit sold two jeans for rupees £9.90 each one one on one he gain 10% and on the other he lost 10% find his gain or loss percent in whole transaction
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SP of one jeans = 9.90
he gains 10% on one jeans
it's Cp= 100/(100+gain %)×sp
=100/110×9.90= 9
he loss 10%on other
it's cp =100/90×9.90 = 11
total SP = 9.90+9.90 =19.80
total cp = 9+11 = 20
loss =cp-sp
= 20-19.80 = 0.80
loss%= 0.80/20×100=4
= 4%
he gains 10% on one jeans
it's Cp= 100/(100+gain %)×sp
=100/110×9.90= 9
he loss 10%on other
it's cp =100/90×9.90 = 11
total SP = 9.90+9.90 =19.80
total cp = 9+11 = 20
loss =cp-sp
= 20-19.80 = 0.80
loss%= 0.80/20×100=4
= 4%
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