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प्रश्न
If the cost of a dozen soaps is ₹ 460.80, what will the cost of 3 dozen soaps?
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उत्तर
Cost of one dozen soap = ₹ 460.80
In one dozen = 12 soaps
Cost of each soap = `₹460.80/12` = ₹ 38.4
Cost of 3 dozen soaps = (12 × 3 = 36) = 36 × ₹ 38.4 = ₹ 1382.4
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