B and C started the work After 3 days D joined them What is the total number of days in which they h...........

Quantitative Aptitude ( CCS) Data Table

NA refers the data which is not needed for a particular question. The number of working days of A, B, C, D is given below and some of them are missing. Take the data of the first row for the first question and the second row for the second question and so on.

A	B	C	D	Ratio	Total Number of Working Days
_	25	NA	NA	Efficiency (A : B) = 5 : 4	NA
_	_	_	NA	NA	_
16	64/5	32	NA	NA	NA
NA	NA	50	_	_	_
NA	9	8	3	NA	_

B and C started the work. After 3 days D joined them. What is the total number of days in which they had completed the work?

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Explanation:

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