Q. Diptesh and Tushar working separately can do a piece of work in 9 days and 12 days respectively. If they work for a day alternately, Diptesh beginning in how many days the work will be completed?
(A) 9
(B) 10
(C) 11
(D) 12
Answer: 11
Q. Diptesh and Tushar working separately can do a piece of work in 9 days and 12 days respectively. If they work for a day alternately, Diptesh beginning in how many days the work will be completed?
(A) 9
(B) 10
(C) 11
(D) 12
Answer: 11