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UPPSC Prelims 2021CSATQ. 47 of 222
Q. 471 markMedium
UPPSC Prelims 2021·CSAT
A, B and C can do a work in 20, 30 and 60 days respectively. In how many days can A complete the work, if he is assisted by B and C on every third day?
(a)12
(b)15
(c)16
(d)18