Question

A cobbler works 19/3 hours daily.how many hours does he work in a week?​

Answer 1

Answer:

Any worker day question can be solved with the concept of man-days.

As it takes 3 days for 10 workers to build a house. This implies a house needs 30 man-days to be built up.

Therefore, 4 houses will need 120 man-days.

Now, we have 15 workers.

Hence we would need 8 days (120/15) to build 4 houses.