Question

A work which could be finished in 9 days was finished 3 days earlier after 10 more men joined. the number of men employed was?

Answer 1

20 no of employee... please mark it as a brainliest answer

Answer 2

Answer:

20

Step-by-step explanation:

Let x be the initial no. of men

x men can complete work in days = 9

1 man can complete work in days = 9x

10 more man joined

So, x+10 men can complete work in days = $\frac{9x}{x+10}$

We are given that when 10 more men joined then work was finished 3 days earlier i.e. 9-3 = 6 days

So,$\frac{9x}{x+10}=6$

$9x=6x+60$

$3x=60$

$x=20$

Hence the number of men employed was 20