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The value of stone varies with square of its weight. A stone is fallen and break into two pieces as ratio of their weights is 3 : 5. Find the loss occurred if the price of the stone is Rs. 1600.1. Rs. 5002. Rs. 6503. Rs. 8704. Rs. 7505. Rs. 800 |
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Answer» Correct Answer - Option 4 : Rs. 750 Given: The cost of a piece of stone varies with the square of its weight loss. ⇒ Price = k × weight2......(k is any constant) Let the weight of a piece of stone be (3a + 5a = 8a). Calculation: The initial value of stone = k.64a2 ⇒ 64ka2 = 1600 Then, The new value of stone becomes = k (9a2 + 25a2) = 34ka2 New value of stone = (34 × 1600)/64 = Rs. 850 ∴ Loss occurred = 1600 - 850 = Rs. 750 |
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