f 6 men can complete a work in 15 hours. Then how many hours it will take if 10 men working at the same speed complete the work?
Question
f 6 men can complete a work in 15 hours. Then how many hours it will take if 10 men working at the same speed complete the work?
Solution
The problem can be solved using the concept of man-hours.
Step 1: Calculate the total man-hours required to complete the work. This is done by multiplying the number of men by the number of hours they work. In this case, 6 men working for 15 hours gives 6*15 = 90 man-hours.
Step 2: Calculate the number of hours it would take for 10 men to complete the work. This is done by dividing the total man-hours by the number of men. In this case, 90 man-hours divided by 10 men gives 9 hours.
So, it will take 9 hours for 10 men to complete the work if they work at the same speed.
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