‘A’ is 40% less efficient than ‘B’ who can do the same work in 20% less time than ‘C’. If A and B together can complete 80% of work in 12 days, then in how many days 60% of work can be completed by B and C together?

12 men can do a work in 10 days while 10 women can do the same work in 18 days. In how many days 4 men and 6 women together can do the same work?

A, B and C can individually complete a piece of work in 24 days, 15 days and 12 days respectively. B and C started the work and worked for 3 days and left. The number of days required by A alone to complete the remaining work, is:

A can do a work in 36 days while B can do the same in 48 days. If A work for x days while B work for x + 2 days then one-third of the work is complete. Find the value of x.

A alone can do a work in 12 days while A and B together can do that work in 7.5 days. Find the time taken by C alone to do that work if C takes 3 days more than that of B alone to do that work?

40 men can complete a work in 48 days. 64 men started for the same work for x days. After x days, 32 men increased, so, the remaining work is completed in 16 2/3 days. Find x.

A is 40% more efficient than B and both together can complete a work in 9 3/8 days. If A works for first five days alone and remaining work is completed by B, then find in how many days total work will be completed?

A, B and C can complete a piece of work in 24, 5 and 12 days respectively. Working together, they will complete the same work in

‘A’ can complete a work in 20 days while B is 25% more efficient than ‘A’. B worked for 6 days and left, remaining work was completed by ‘C’ in 15 days. Find in how many days ‘C’ can complete the whole work alone?

A, B and C each working alone, can finish a piece of work in 27, 33 and 45 days respectively. A starts by working alone for 12 days, then B takes over from A and works for 11 days. At this stage, C takes over from B and completes the remaining work. In how many days, the whole work was completed?