Q: A, B and C can complete a work in 10, 15 and 20 days respectively. – McqOptions

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1.	Q: A, B and C can complete a work in 10, 15 and 20 days respectively. A and B start it together. B is replaced by C after 2 days. A leave it after one more day. In how many days work was completed?
A.	13
B.	\(13 {1 \over 13 }\)
C.	\(18 {4 \over 3 }\)
D.	18
Answer» C. \(18 {4 \over 3 }\)

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