68. A does half as much work as B in one-third of the
time taken by B. If together they take 10 days to
complete a work, then the time taken by B alone to do
it would have been
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4
Answer:
25 days
Step-by-step explanation:
A : B
Time 1 : 3(Description same as Q no.137)
work 1 : 2
now make equal time
efficiency 3:2
Time 3:3
(Description same as Q no.137)
Total work=10days×5=50units
B alone completes whole work in
=50/2
=25days
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