Question

if 15 men can do a work in 12, days how many men will do the same work in 6 days?​

Answer 1

Step-by-step explanation:

M1D1 = M2D2

15 × 12 = M2 × 6

M2 = 15×12/6

M2 = 15×2

m2 =30 men

Answer 2

Given:

15 men can do a certain work in 12 days.

To Find:

How many men are required to complete the same work in 6 days?

Solution:

1. It is mentioned a total of 12 days will be taken by 15 men to complete a certain job.

=> 15 men take 12 days to finish a job,

=> 1 man takes a total of 15 x 12 days to finish the same job,

=> Time taken by a single man to finish the same job = 180 days.

2. The total men required to finish the same job in 6 days is,

=> If it takes 180 days to finish a job by a single man then,

=> Total men required for finishing the work in 6 days = 180/6 = 30.

3. A total of 30 men are required to finish the same job in 6 days.

Therefore, 30 men can do the same job in 6 days.