Question

if 15 men take 40 days complete the work. how long it will take 15 more men joining them to complete the work?​

Answer 1

Answer:

20 day

Step-by-step explanation:

15 men take 40 days .15 more men joining them, so 30 men take 20 days

Answer 2

If 15 men take 40 days to complete the work, then it will take 20 days if 15 more men are joining them to complete the work.

Step-by-step Explanation

Given:

It takes 15 men to complete the work in 40 days.

To be found:

To find the number of days taken to complete the work if 15 more men are joining them.

Solution:

We know that, it takes 15 men to complete the work in 40 days.

It is said that 15 more men are joining to complete the work.

So, the total number of men participating now to complete the work $=15+15=30$ days

Now, let the time taken by 30 men to complete the work be x days.

Here, we now know that the work completed by 15 men in 40 days is equal to the work completed by 30 men in x days.

$\implies 15 \times 40=30 \times x\\\implies x=\frac{15 \times 40}{30}$

Multiplying and dividing the values, we get

$x=20$ days

Therefore, the time taken by 30 men to complete the work is 20 days.

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