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it takes 8 , 12 and 16 days for A , B and C to complete to
task . how many days will it take if A works on the job for
2 days and then B works on it until 25 % of the job is left
for C to do , and C completes the work ?
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Answer Posted / sabarish
12 days.
work done by A in 1 day = 1/8.
for 2 days its 1/4.
remaining work is 1-1/4=3/4.
25 % of work is done atlast be C.
thrfore it is 1/4.
work done by B = 3/4-1/4 = 1/2.
days for B to complete is (1/2) /(1/12) = 6
days for C to complete 1/4 of the job (1/4) /(1/16) = 4.
A takes 2 days , B takes 6 days and C takes 4 days.
total is 12 days.
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