Multiple Choice Questions

A and B can complete a job in 16 hrs and 24 hrs respectively In how many hours they together can pro...........

Quantitative Aptitude (Pb Patwari) Time and work

A and B can complete a job in 16 hrs and 24 hrs respectively. In how many hours they together can produce 10 such jobs?

Solution:
Working together:
1/16 + 1/24 = 5/48
So they complete 5 jobs in 48 hrs.
Therefore, 10 jobs in 48×2 = 96 hrs.

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