CUET Preparation Today
A can do a piece of work in 10 days and B can do it in 15 days. They do the work alternatively. If B begins the work, then in how many days will the work finish? |
12 15 20 10 |
12 |
Let the total work be 30
1st day work (B) = 2 2nd day work (A) = 3 Work done in every 2 days = 2 + 3 = 5 Therefore, 30 work will be completed in = 2 × 6 = 12 days |
