The price of tea is increased by 20 percent. By how much percent a housewife should reduce the consumption of tea so as not to increase the expenditure on tea?
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Answer:
CP=100
after increase 120
120 (loo-R)/100=100
100-R=100x loo/l20 =83 1/3%
R=100-83 1/3 = 16 2/3% Ans
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