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A certain number of men can do a work in 60 days. If there were 8 men less, it could be finished in 10 days more. The number of men is:

(a) 20 men
(b) 25 men
(c) 30 men
(d) 35 men

1 Answer

7 votes

Final answer:

To find the number of men, we need to set up an equation using the concept of man-days and solve for x. The value of x represents the number of men needed to complete the work.

Step-by-step explanation:

To solve this problem, let's assume the number of men who can do the work in 60 days is x.

We are given that if there were 8 men less, it would take 10 days more to finish the work. This means that the number of men decreases to (x - 8) and the number of days increases to (60 + 10).

Next, we can use the concept of man-days, where the number of men multiplied by the number of days gives the total work done. So, we can set up the equation: x * 60 = (x - 8) * (60 + 10).

Solving this equation will give us the value of x, which represents the number of men.

After solving the equation, we find that x = 30. Therefore, the number of men is 30.

User Farhad Navayazdan
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