If the price of the coal be raised by 10% by how much percent a man mu – McqOptions

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1.	If the price of the coal be raised by 10% by how much percent a man must reduce its consumption so as not to increase his expenditure.
A.	30
B.	11
C.	9 1?11%
D.	12.50%
Answer» D. 12.50%

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