Kiran can do a piece of work in 9 days and Kumar can do the same work in 18 days They started the wo...........

Quantitative Aptitude ( CCS) Time and work

Kiran can do a piece of work in 9 days and Kumar can do the same work in 18 days. They started the work. After 3 days Sanjay joined them, who can complete alone the same whole work in 3 days. What is the total number of days in which they had completed the work?

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Explanation:

Explanation :
Efficiency of Kiran and Kumar = 11.11 + 5.55 = 16.66%
Work done in 3 days = 3 x 16.66 = 50%
Rest work done by Kiran, Kumar and Sanjay = 50/50 = 1 day
Work can be completed in 4 days

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