Question

9man can paint a hall in 16hr.how many men will be able to paint in 12hr​

Answer 1

Answer:

Here is an example

Step-by-step explanation:

Let painting is a work here.

Let number of men with you is n

And they can do a work in 18 days

So 1 man can do that work in 18*n days (assuming all men have equal working capability)

So 1 mans 1 day work is 1/(18*n)

And let m men do a work in 10 days

So m mens 1 day work is m/(18*n)

m mens 10 days work = 10*m/(18*n)

Which is equal to 1 as 1 work has to be done.

So by equating we get m=1.8*n

So the number of men who can do the work in 10 days is equal to 1.8 * no of men tou have.