Question

if 40 men can finish a job in 12 days how many men should be employed to finish the job in 8 days​

Answer 1

40 men can finish the job in 12 days

1 man can finish the job in (40×12) days

Let the men finish the job in 8 days be 'S'

'S' men can finish the job in 8x

$S = 40 \times 12$

$=8s=40×12$

$=S= \frac{40 \times 12}{8}$

$=S= 60 \: men$

Answer 2

Answer:

The number of men required to finish the job in 8 days is 60.

Step-by-step explanation:

Given, 40 men are required to finish the job in 12 days

Number of men required to finish the job in 1 day = $40\times 12$               ...(1)

For the second case,

Let $x$ men required to finish the job in 8 days

Number of men required to finish the job in 1 day = $8\times x$                  ...(2)

As the work is same, equating both cases for the men required in 1 day,                                                  

$8\times x=40\times 12$

$\implies x=\frac{40\times 12}{8}$

$={5\times 12}=60$

Therefore, the number of men required to finish the job in 8 days is 60.