.A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is :

A can do 2/5 of a work in 12 days while B can do 66 2/3% of the same work in 16 days. They work together for 10 days. B alone will complete the remaining work in?Options6498

A and B can complete a work in 15 days and 10 days respectively. They started doing the work together but after 2 days B had to leave and A alone completed the remaining work. The whole work was completed in :8 days10 days12 days15 days

If A can do a piece of work in 10 days and B can do the same work in 15 days, how long will they take to complete it together?

A and B can do a piece of work in 45 and 40 days respectively. They began the work together but A left after some days and B finished the remaining work in 23 days. A left after

If A is 25% as efficient as B and can complete a certain work taking 15 days more than the time taken by B, in how many days will both A and B together complete the work?4 days5 days7 days10 days