A can do a piece of work in 30 days while B can do it in 40 days. A and B working     together can do it in:Select one:a. 15  2/7 daysb. 17  1/7 daysc. 18  3/7 daysd. None of these

B is twice as efficient as A and A can do a piece of work in 21 days. A started the work and after a few days B joined him. They completed the work in 15 days from starting. For how many days did they work together?Select one:a. 2 daysb. 3 daysc. 6 1/2 daysd. 5 dayse. 6 days

Select the correct answerA can do 7/8 of work in 28 days, B can do 5/6 of the same work in 20 days. The number of days they will take to complete if they do it together is?Options15 7/3 days14 5/7 days13 5/7 days17 3/5 days

A can do a half of certain work in 35 days and B one third of the same in 70 days. They together will do the whole work in.

Select the correct answerA can finish a work in 18 days and B can the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day?Options01/Sep01/Jun02/May2/Jul

Select the correct answerA can do a piece of work in 8 days and B can do it in 10 days separately. How many days would it take for both A and B to finish the same work together?Options33/841/1042/1140/9