1. A and B can separately do a piece of work in 20 and 15 days, respectively. They
worked together for 6 days, after which B was replaced by C. If the work was
finished in the next 4 days, then the number of days in which C alone could do
the work will be
(1) 60 days
(2) 40 days
(3) 35 days
(4) 30 days
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1. A and B can separately do a piece of work in 20 and 15 days, respectively. They
worked together for 6 days, after which B was replaced by C. If the work was
finished in the next 4 days, then the number of days in which C alone could do
the work will be
(1) 60 days
(2) 40 days
(3) 35 days
(4) 30 days1. A and B can separately do a piece of work in 20 and 15 days, respectively. They
worked together for 6 days, after which B was replaced by C. If the work was
finished in the next 4 days, then the number of days in which C alone could do
the work will be
(1) 60 days
(2) 40 days
(3) 35 days
(4) 30 days
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