Question

if 36 men cancan do a piece of work in 25 days, in how many days will 15 men

Answer 1

Correct Question:

If 36 men can do a piece of work in 25 days, how many days will it take 15 men to complete the same piece of work.

Solution,

No. of days taken by 36 men to complete the work = 25 days

Therefore days taken by one man to complete the work

= 25 x 36 days

= 900 days

So,

No. of days taken by 15 men to complete the work

= $\sf{\dfrac{900}{15}}$

= 60 days

Therefore 15 men take 60 days to complete the work [approx. 2 months]

Knowledge Bytes:

→ Unitary Method

By using unitary method, we find find the value required for a single unit and then multiply that value to the required no. of units as mentioned in the question.