Question

If 15 boys can finish a job in 8 days, then time taken by 6 boys to finish the same job is ​

Answer 1

Solution :-

Given : 15 boys can finish a job in 8 days.

Find the time taken by 6 boys to finish the same job :

By unitary method,

15 boys = 8 days

1 boy = 8 × 15 = 120 days

6 boys = 120/6 = 20 days

Hence,

6 boys can finish the job in 20 days.

Answer 2

Answer:

Time taken by 15 boys to do the job = 8 days

Time taken by 1 boy to do the job= 120 days

So , the time taken by 6 boys = 120/6

= 20 days

I hope this is the correct answer