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Shaurya, and Shreya can do a piece of work in 15, and 20 days respectively, and they together earn Rs 2100. Find the share of Shreya.1. Rs 6002. Rs 8003. Rs 9004. Rs 400 |
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Answer» Correct Answer - Option 3 : Rs 900 Given: Shaurya can do a piece of work in 15 days. Shreya can do a piece of work in 20 days. Total earning = Rs 2100 Concept: Wages are distributed in proportion to the work done and in inverse proportion to the time taken by the individual. Calculation: 1 day work of Shaurya = 1/15 1 day work of Shreya = 1/20 Ratio of their work = 1/15 ∶ 1/20 ---- (1) Take L.C.M. of 15, 20 and then multiply it with equation (1) ⇒ 60/15 ∶ 60/20 ⇒ 4 ∶ 3 Ratio of their wages = 4 ∶ 3 Let Shaurya’s share is 4x, and Shreya’s share is 3x. Shaurya’s share + Shreya’s share = 2100 ⇒ 4x + 3x = 2100 ⇒ 7x = 2100 ⇒ x = 300 Shreya’s share = 3x ⇒ 3 × 300 ⇒ 900 ∴ The share of Shreya is Rs 900. |
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