The price of sugar is increased by 20%. By what percent must the consumption of sugar be decreased so that the expenditure on sugar may remain the same?
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Take initial =100 and now 20 increased so its 120...Then difference bw them =20
Then percentage = 20/100×100=20%
since no change in expenditure so its 100 at bottom
Then percentage = 20/100×100=20%
since no change in expenditure so its 100 at bottom
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