Q. |
The price of tea powder per kg increased from ₹ 200 from kg to ₹ 300 per kg. By what percent must the consumption of tea powder be reduced to maintain its expenditure as before? |
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A. 50% |
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B. 33 1 / 3 % |
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C. 20% |
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D. 25% |
Increase = 100/200 = 1/2
Apply the Line method.
1/2 going down becomes 1/3 = 331/3%