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1). 62). 25/43). 124). 25/2 |
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Answer» A complete work in = 25 days A’s 1 - DAY work = 1/25 B complete work in = 15 days B’s 1 - day work = 1/15 Both working together for 1 hour = (1/25) + (1/15) Both working together for 1 hour = (3 + 5)/75 TIME to complete the work together = 75/8 = 9(3/8) days ∴ Time to complete (2/3) of total work together = (75/8) × (2/3) = (25/4) days |
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