Q350
A and B can do a work together in 18 days. A is three time as efficient as B. In how many days can B alone complete the work?
A.
60 days
B.
72 days
AnswerC.
54 days
D.
64 days
Answer: Option B
Solution
Answer: Option B
Solution:
A : B = 3 : 1Total work = 4 × 18 = 72 unit
B = = 72 days