Question
A shopkeeper sells rice at 10% profit and uses weight
30% less than the actual measure. His gain percent isSolution
let the weight be 1000 g altered weight=1000- 30% of 1000 = 1000 -300 = 700g gain %= [100+profit%](1000 / altered weight) -100 gain % = [100+10] (1000/700)-100 = (1100 – 700)/7 = 400/7 57(1/7)%
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