Time and Work- Aptitude Questions and Answers

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Praful has done 1/2 of a job in 30 days, Sarabjit completes the rest of the job in 10 days. In how many days can they together do the job?

A)

30 days


B)

45 days


C)

15 days


D)

60 days



Correct Answer :

15 days


Explanation :

Praful can complete full Job in= 30 * 2 = 60 days
Sarabjit can completes rest of the job means 1/2 job in 10 days, so full job in= 10 * 2 = 20 days

Their combined one day work =1/60 + 1/20 = 4/60 = 1/15

So, they both take 15 days to complete full Job.

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