if 9 men and 15 boys working 10 hours a day can make 12 pillars in 42 days. ln how many days will 12 men and 22 boys working 8 hours a day can make pillars for time the previous number ?
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In the given question it is not given the efficiency of men and boys. So we let it 1 for both.
Now,m1×D1×h1W1=m2D2h2W2(9+15)×10×4212=(12+22)×8×D4×1224×10×4212=34×8×D48D=252017=148417 days
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148417 days it's your answer
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