Practice MCQ Questions and Answer on Time and Work
281.
A can do a piece of work in 15 days, which B can do it in 10 days. B worked at it for 8 days. A can finish the remaining work in?
- (A) 2 days
- (B) 3 days
- (C) 5 days
- (D) 10 days
282.
3 men and 4 women can do a piece of work in 7 days, whereas 2 men and 1 woman can do it in 14 days. 7 women will complete the same work in:
- (A) 10 days
- (B) 8 days
- (C) 9 days
- (D) 12 days
283.
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 :
- (A) 8 days
- (B) 10 days
- (C) 12 days
- (D) 15 days
284.
P can complete $$\frac{1}{4}$$ of a work in 10 days, Q can complete 40% of the same work in 145 days. R, complete $$\frac{1}{3}$$ of the work in 13 days and S, $$\frac{1}{6}$$ of the work in 7 days. Who will be able complete the work first ?
- (A) P
- (B) Q
- (C) R
- (D) S
285.
A can do in one day three times the work done by B in one day. They together finish $$\frac{2}{5}$$ of the work in 9 days. The number of days by which B can do the work alone is = ?
- (A) 90 days
- (B) 120 days
- (C) 100 days
- (D) 30 days
286.
Two worker A and B are engaged to do a piece of work. A working alone would take 8 hours more to complete the work that when work together. If B worked alone, would take $${\text{4}}\frac{1}{2}$$ hours more than when working together. The time required to finish the work together is = ?
- (A) 5 hours
- (B) 8 houras
- (C) 4 hours
- (D) 6 hours
287.
Shyam can complete a task in 12 days by working 10 hours a day. How many hours a day should he work to complete the task in 8 days?
- (A) 14
- (B) 16
- (C) 12
- (D) 15
288.
A is as efficient as B and C together. Working together A and B can complete a work in 36 days and C alone can complete it in 60 days. A and C work together for 10 days. B alone will complete the remaining work in:
- (A) 88 Days
- (B) 84 Days
- (C) 110 Days
- (D) 90 Days
289.
A and B can do a work in 8 days, B and C can do the same work in 12 days. A, B and C together can finish it in 6 days. A and C together will do it in :
- (A) 4 days
- (B) 6 days
- (C) 8 days
- (D) 12 days
290.
Three painters have to spend 6 hours a day for 12 days to finish a work. If after 3 days one painter leaves, in how many days the remaining work will be completed?
- (A) $$15\frac{2}{3}$$
- (B) $$13\frac{1}{2}$$
- (C) 11
- (D) 8