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QThe price of silver-biscuit is precisely proportionate to its weight squared. A guy lost Rs 4620 after breaking down the silver cookie in the ratio of 3: 2: 1. Determine the starting value of silver-biscuit.
ID: #4746
Ratio and Proportion
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#4746Q ID
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Ratio and ProportionTopic
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Correct Answer: Option D
Explanation
Given ratio = 3: 2: 1 Or, 3x: 2x: x The initial price= (6x)2 = 36x2 After broke down the price = (3x)2: (2x)2: x2 = 9x2: 4x2: x2 = 14x2 After breakdown, a loss of Rs. 4620 occurs. i.e., loss = initial price - final price Loss = 36x2 - 14x2 = 22x2 22x2 = 4620 Or, x2 =4620/22 = 210 The initial price of silver-biscuit = 36*210 = 7560
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