A trader normally makes a profit of 40% on items he sells. If he reduces the price by 10%, his sales increase by 40%. Let x be the total profit when he does not reduce the price, and y the total profit when he reduces the price. What is the ratio of y to x?
A. 1.28
B. .78
C. 1.11
D. .91
E. none of these
সঠিক উত্তরঃ
D.
.91
Explanation:
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