a man sold two washing machine for 9900 each. he sold one at a gain of 10% and the other of a loss of 10%.find his gain or loss% in the whole transaction.
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Cp of one washing machine =Rs. 9900
Sp of one washing machine = loss 10%
=90/100*9900
=Rs.8910
Cp of another washing machine =Rs. 9900
Sp of another washing machine = gain 10%
=110/100*9900
=Rs. 10890
Total Cp = Rs (9900+9900) = 19800
Total Sp = Rs (8910+10890) = 19800
Hence, theirs no gain or loss % because both the Cp and Sp are equal i.e. 19800=19800
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