A and B together can complete a task in 4 days. B
and C together can complete the same task in 6 days. A and C together can
complete the same task in 8 days. What is the respective ratio of the number of
days taken by A when completing the same task alone to the number of days taken
by C when completing the same task alone?
(a) 5 :
3
(b) 5 :
1
(c) 3 :
5
(d) 1 : 5
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