Q.6. Ajay and Vijay undertake to do a piece of work for Rs. 480. Ajay alone can do it in 75 days while Vijay alone can do it in 40 days. With the help of Pradeep, they finish the work in 25 days. How much should Pradeep get for his work?
(A) Rs. 40
(B) Rs. 20
(C) Rs. 360
(D) Rs. 100
(E) Rs. 60
Q.7. A and B can do a piece of work in 30 days , while B and C can do the same work in 24 days and C and A in 20 days . They all work together for 10 days when B and C leave. How many days more will A take to finish the work?
(A) 18 days
(B) 24 days
(C) 30 days
(D) 36 days
Q.8. A can do a certain work in the same time in which B and C together can do it.If A and B together could do it in 20 days and C alone in 60 days ,then B alone could do it in:
(A) 20days
(B) 40 days
(C) 50 days
(D) 60 days
Q.9. A and B together can do a piece of work in 8 days. If A alone can do the same work in 12 days, then B alone can do the same work in?
(A) 20 days
(B) 16 days
(C) 24 days
(D) 28 days
Q.10. A and B can do a piece of work in 3 days, B and C in 4 days, C and A in 6 days. How long will C take to do it?
(A) 18 days
(B) 20 days
(C) 24 days
(D) 30 days
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