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Practice Time and work Questions and Answers

A2 type ‘P’ pipes can fill a tank in 450 hours, while B2 type ‘Q’ pipes can fill the same tank in 648 hours. (10A × 6B) type ...
Working alone, B can complete the work in 30 days. C is twice as efficient as B and A takes 3 days more than it takes C to complete the work. Working toget...
Working alone, B can complete the work in 30 days. C is twice as efficient as B and A takes 20 days more than it takes C to complete the work. Working toge...
x men can finish a work in y days. 0.9x women can finish 1/3rd of the same work in (y - 8) days. If 0.8x women can complete 1/3rd work in 36 days. Find 0.5...
A does 1/2 work and B does 3/4 work in the same time. Difference between number of days taken by A and B to work alone to complete the work individually is...
90 men can complete a work in 32 days. Eight days after they started working, 72 more men joined them. How many days will they now complete the remaining w...
A alone work for 6 days then left the work and B alone finishes remaining work in 12 days. If ratio of time taken by A alone to B alone to finish work is 3...
A can do a piece of work in 15 days, B is 25% more efficient than A, and C is 40% more efficient than B. A and C work together for 3 days and then C leaves...
Three men and 4 women can do a piece of work in 7 days, whereas 2 men and I woman can do it in 14 days. Seven women will complete the same work in:
A and B working together, can do a piece of work in 4(1/2) hours. B and C working together can do it in 3 hours. C and A working together can do it in 2(1/...
A can do a work in 10 days and B in 15 days. If they work on it together for 4 days then in how many days the remaining work will be completed by B?
A can do a work in 12 days and B in 16 days. If they work on it together for 3 days then in how many days the remaining work will be completed by B?
A and B together can do a work in 8 days. If A can alone do the same work in 24 days, then in how many days B alone will do the same work?
A and B together can do a work in 12 days. If A can alone do the same work in 18 days, then in how many days B alone will do the same work?
A and B together can do a work in 5 days. If A can alone do the same work in 15 days, then in how many days B alone will do the same work?
A and B together can do a work in 6 days. If A can alone do the same work in 9 days, then in how many days B alone will do the same work?
A and B together can do a work in 8 days. If A can alone do the same work in 12 days, then in how many days B alone will do the same work?
Working in a shift of 5 hours 39 workers take 12 days to build a stretch of highway. In how many days will 30 workers working 6 hours a day, complete the w...
Two workers A and B were put to some work. If A worked alone, he would have taken 8 hours more than when both A and B had worked together. If B worked alon...
A, B and C can do a piece of work in 5, 8 and 10 days respectively. They start working together but C leaves after working 1 days and B, 2 days before the ...
The efficiency of A is half than that of B and C together. The ratio of the efficiency of B and C is 5 : 4. A, B and C together can do this work in 12 days...
Amit is 66(2/3)% more efficient than Vivek who can do the same work in 25% more time than Sameer. If Amit and Sameer together can complete 70% of work in 1...
John does ½ piece of work in 3 hours, Joe does ¼ of the remaining work in 1 hour and George finishes remaining work in 5 hours. How lon...
A does 2/5 of a work in 9 days. Then B joined him and they together completed the remaining work in 6 days. B alone can finish the whole work in ...
A man does double the work done by a boy in the same time. The number of days that 3 men and 4 boys will take to finish a work which can be done by 10 men ...
An elephant can do a work as fast as two horses ‘A’ and ‘B’ can do it by working together. If horse ‘A’ alone can complete the work in 38 hours...
X men can complete the piece of work in 35 days and (X + 34) men can complete the same work in 14 days less than that of days taken by X men. Find the valu...
X men can complete the piece of work in 50 days and (X + 51) men can complete the same work in 30 days less than that of days taken by X men. Find the valu...
X men can complete the piece of work in 45 days and (X + 46) men can complete the same work in 23 days less than that of days taken by X men. Find the valu...
X men can complete the piece of work in 32 days and (X + 30) men can complete the same work in 15 days less than that of days taken by X men. Find the valu...
X men can complete the piece of work in 36 days and (X + 35) men can complete the same work in 14 days less than that of days taken by X men. Find the valu...
X men can complete the piece of work in 36 days and (X + 30) men can complete the same work in 15 days less than that of days taken by X men. Find the valu...
A takes 32 days to complete a work while B can complete the same work in 12 days less than A. If C can complete 25% of the work in 12 days, then find the t...
A and B can complete a work together in 20 days. If A alone can complete one-fourth of the work in ‘x’ days and remaining work is completed by ...
A and B can complete a work together in 25 days. If A alone can complete one-fourth of the work in ‘x’ days and remaining work is completed by ...
A and B can complete a work together in 30 days. If A alone can complete one-third of the work in ‘x’ days and remaining work is completed by B alone i...
A and B can complete a work together in 32 days. If A alone can complete one-fourth of the work in ‘x’ days and remaining work is completed by ...
A and B can complete a work together in 36 days. If A alone can complete one-fourth of the work in ‘x’ days and remaining work is completed by ...
A and B can complete a work together in 36 days. If A alone can complete one-third of the work in lsquo;xrsquo; days and remaining work is completed by B a...

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