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Aman and Ajay can build a wall in 9 days and 12 days respectively. In how many days can they finish the work if they work together?1). \(5\frac{1}{7}\)2). \(11\frac{1}{2}\)3). 24). 7 |
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Answer» ⇒ Aman’s EFFICIENCY = 1/9 ⇒ AJAY’s efficiency = 1/12 ⇒ Efficiency of Ajay and Aman TOGETHER = (1/9) + (1/12) = 7/36 ⇒ TIME taken = 36/7 = $(5\frac{1}{7})$ |
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