18 men can complete a piece of work in 5 days. In how many days can 21 men complete the same piece of work?

TIME AND WORK :

A alone can complete a piece of work in 6 days. Work done by B alone in one day is equal to one – third of the work done by A alone in one day. In how many days can the work be completed if A and B work together?

TIME AND WORK :

Arun is twice as fast as Ramu, and Ramu is one-third as fast as Chandra. If together they can complete a piece of work in 30 days, in how many days can Arun, Ramu and Chandra do the work respectively?

TIME AND WORK :

50 men can complete a work in 65 days. Five days after they started the work, 20 men left the group. In how many days can the remaining work be completed?

TIME AND WORK :

Two persons A and B can complete a piece of work in 30 days and 45 days respectively. If they work together, what part of the work will be completed in 3 days?

TIME AND WORK :

A certain number of men can do a work in 65 days working 6 hours a day. If the number of men are decreased by one-fourth, then for how many hours per day should they work in order to complete the work in 40 days?

TIME AND WORK :

Sixty men can stitch 200 shirts in 30 days working 8 hours a day. In how many days can 45 men stitch 300 shirts working 6 hours a day?

TIME AND WORK :

Five men and nine women can do a piece of work in 10 days. Six men and twelve women can do the same work in 8 days. In how many days can three men and three women do the work?

TIME AND WORK :

Two men can complete a piece of work in four days. Two women can complete the same work in eight days. Four boys can complete the same work in five days. If four men, eight women and 20 boys work together in how many days can the work be completed?

TIME AND WORK :

Twelve men and six women together can complete a piece of work in four days. The work done by a woman in one day is half the work done by a man in one day. If 12 men and six women started working and after two days, six men left and six women joined, then in how many more days will the work be completed?

TIME AND WORK :

A, B and C can do a work in 7, 14 and 21 days respectively. They completed the work and got Rs.242. What is the share of C?