10 men can construct a wall of height 50 m in 15 days if they are working for 6 hours a day. Find the time taken for the same men to construct a wall double the height if they are working for 8 hours a day.
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10 men construct a wall in 8 days. So the wall requires 10x8 = 80 man-days of effort. In case you want the wall to be constructed in 1/2 day you will need 80/(1/2) = 160 men.
Caution: Theoretically, 160 men can do the wall construction in half a day.
Step-by-step explanation:
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