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In making a radio set the cost of labor and materials are in the ratio of 3:2 . A manufacturer sells a set for TK 1,500 to make a gain of 25% on the cost. What is the cost of the materials for the set?

A. 72

B. 60

C. 54

D. 48

E. 40

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সঠিক উত্তরঃ D. 48

Explanation:

কঃখ =৩ঃ৫, খঃগ =৪ঃ৭, হলে, কঃগ = কত?
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In making a radio set the cost of labor and materials are in the ratio of 3:2 . A manufacturer sells a set for TK 1,500 to make a gain of 25% on the cost. What is the cost of the materials for the set?