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8 boys working 4 hours a day earn Rs. 320, how much will 7 boys working 2 hours a day will earn?1. Rs. 1202. Rs. 1303. Rs. 1504. Rs. 140 |
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Answer» Correct Answer - Option 4 : Rs. 140 GIVEN: 8 boys working 4 hours a day earn Rs. 320. FORMULA USED: (B1 × D1)/W1 = (B2 × D2)/W2 CALCULATION: By using the formula: 8 × 4 × W2 = 7 × 2 × 320 ⇒ W2 = Rs. 140 |
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