Question

A certain job was assigned to a group of men to do it in 20 days. But 12 men did not turn up for the job and the remaining men did the job in 32 days. The original number of men in group was

Answer 1

Answer:

32

Step-by-step explanation:

Let the original number of men be x

Initially,

x men did the work in 20 days

1 man could do the work in 20x days.......(i)

After 12 men left,

Number of men=x-12

x-12 men can do the job in 32 days

1 man could do the work in 32(x-12) days..........(ii)

from (i) and (ii), we can conclude,

20x=32(x-12)

20x=32x-384

12x=384

x=32