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UKPSC Prelims 2021GS-IIQ. 59 of 249
Q. 591 markMedium
UKPSC Prelims 2021·GS-II
A and B can finish a piece of work in 15 days and 10 days respectively. They start working together but after 3 days A leaves the work and B completes the remaining work alone. For how many days did B work alone?
(a)8
(b)5
(c)3
(d)2