Price of the sugar rises by 20% by how much percent should the consumption of sugar be reduced so that the expenditure does not change ?
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Answer:
original Price = loo
after increase 120
120 (loo-D) loo=loo
loooo/120 = 100-D
83 1/3 = loo-D
D = 100-83 1/3 = 16 2/3%
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