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cost price of 2 watches taken together is rupees 840 if by selling one at profit of 16% and other at a loss of 12% there is no gain or loss in the whole transaction then find CP of each watch |
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Answer» Let the CP of watch 1 = Rs x.CP of 2nd watch = 840-xSP of 1st watch = 116x/100 [16% profit]SP of 2nd watch= 88(840-x)/100 [12% loss]No loss/gain=> 840 = 116x/100 + 88(840-x)/100=> 840×100= 116x - 88x + 840×88=> 84000 = 28x+73920=> 28x= 84000-73920=> 28x=10080=> x=10080/28=> x=360CP of 1st watch = 360CP of 2nd watch= 840-x= 840-360=480 |
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