1. A and B can do a work in 30 days and 40 days respectively . A worked for 15 days then B joined and they together completed the remaining work . If they earn Rs. 210 for the work , then what is the share of A ? Ans : 165
2. A's efficiency is 20% more than that of B , C is 60% as efficient as B and D is 1/3rd as efficient as A . B,C and D can complete a work in 9 days . How many days are required for A , B and D working together to complete the same work . Ans : 6.9
2. A's efficiency is 20% more than that of B , C is 60% as efficient as B and D is 1/3rd as efficient as A . B,C and D can complete a work in 9 days . How many days are required for A , B and D working together to complete the same work . Ans : 6.9
No comments:
Post a Comment