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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