Question

9 men can do a work in 10days how many more man are needed to finish doublenthe work in 18 days​

Answer 1

Answer:

1

Step-by-step explanation:

9 men needs 10 days

so 1 man will need 90 days to do it.

Now for doing the double work one man will need 90 x 2 days

thus to do it in 18 days we need (90x2)/18 men = 10

acc to prob. we had 9 men already we need 10. ie 1 more man to do it..