Madhav sent Rs.1200 on buying 6 stools. one of the stools was sold at a loss of 10% by mistake. at what prize should the remaining 5 stools be sold so that the net gain is 8%?
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In the case where loss and gain percentage is common on same selling price, always a loss incurs in total deal. And this can be calculated by a short-cut:
Loss on total deal,
=(Common loss or gain percentage10)2=(2010)2=4%
Alternatively, It can be also calculated through Graphic Change Method: This can be given by,
100 == 20% gain ⇒ 120 == 20% loss ⇒ 96
Loss = 4% (As 100 became 96)
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