A can do a piece of work in 25 days and B can do the
same work in 30 days. They work together for 5 days
and then A
leaves. B will finish the remaining work in
(a) 11 days
(b) 19 days
(c) 20 days
(d) 21 days
Answers
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Answer:
a) 11 days
Step-by-step explanation:
A & B together can complete work in (25x20)/(25+20) =500/45 = 100/9 days.
They complete 5 x 9/100= 9/20 work in 5 days.
Remaining 11/20 work done by B in 11/20 x 20 = 11 days.
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