Rakesh and Birjesh together can complete a work in 15 days. Rakesh alone can complete the same work in 30 days. If Birjesh does the work for only half a day daily; then in how many days will Rakesh and Birjesh together complete the work?

Rakesh and Birjesh together can complete a work in 15 days. Rakesh alo

1.	Rakesh and Birjesh together can complete a work in 15 days. Rakesh alone can complete the same work in 30 days. If Birjesh does the work for only half a day daily; then in how many days will Rakesh and Birjesh together complete the work?
A.	20 days
B.	10 days
C.	11 days
D.	15 days
Answer» B. 10 days

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Rakesh and Birjesh together can complete a work in 15 days. Rakesh alone can complete the same work in 30 days. If Birjesh does the work for only half a day daily; then in how many days will Rakesh and Birjesh together complete the work?

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