T and V started the work After 3 days Z joined them who can complete alone the same whole work in 3 ...........

Quantitative Aptitude ( CCS) Bar Graph

T and V started the work. After 3 days Z 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 T and V = 11.11 + 5.55 = 16.66%
Work done in 3 days = 3 x 16.66 = 50%
Rest work done by T, V and Z = 50/50 = 1 day
Work can be completed in 4 days.