Question

working for 10 hours a day, a carpenter completes a job in 15days. How long will it take him if he works for 6 hours a day?

Answer 1

Step-by-step explanation:

The answer most people will give is 16 days, however your direct question states, “if he works 6 hours,..”.

If he worked at the same production rate and only worked a grand total of 6 hours then he never completed his work. The question never said, “if he worked 6 hours daily instead of 8…”

The other possible interpretation is the man increased his production/efficiency and completed his task in 6 hours.