Question

6. 480 men can finish a piece of work in 9 months. How many more men must be employed to complete the work in 6 months?
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i want step by step explanation
For correct answer i will mark as branlisht​

Answer 1

Answer:

ere work is constant so,

Work = 480 men * 10 months

= 4800 men months

So according to the given problem,

Work = x men * 8 months

Substitute the value of work,

4800 = x * 8

x = 600

Extra men = 600 - 480

= 120 men.

So we require extra 120 men to complete the work in 8 months.

Step-by-step explanation:

Answer 2

480 men can finish a piece of work in 9 months.

Let number of men who can finish the work in 6 months be x.

We know, As the number of workers is inversely proportional to time taken:

480 × 9 = x × 6

$\sf{x = \frac{480 \times 9}{6} = 720 \: men}$

Hence, (720 - 480 = 240) more men must be employed to finish the work in 6 months.