Showing posts with label time and work. Show all posts
Showing posts with label time and work. Show all posts
Wednesday, February 10, 2016

time and work

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A certain number of men complete a piece of work in 60 days. if there were 8 men more, the work could be finished in 10 days less. How many...

time and work

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16 men can do a piece of work in 16 days. 4 days after they started the work, eight more men joined them. How many days will they take now ...
Wednesday, October 8, 2014

pipes and cistern

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A leak in the bottom of a tank can empty the full tank in 6 hours. An inlet pipe fills water at the rate of 4 liters a minute. When the tan...

pipes and cisterns

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Three pipes A, B and C can fill a tank in 6 hours. All the three pipes are kept open for 2 hours, C is then closed and A and B fills the re...

pipes and cisterns

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A tank is filled in 10 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pi...

pipes and cisterns

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Three pipes A, B and C can fill up a tank from empty to full in 10 minutes, 20 minutes, and 30 minutes respectively. When the tank is empty...
Saturday, August 30, 2014

time and work

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two pipes running together can fill up a cistern in 40/13 mins. If one pipe takes 3 mins more than the other to fill the cistern, find the ...
Friday, August 29, 2014

time and work

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Pipe A can fill a tank in 3 hours less than pipe B. they together can fill the tank in 6 hours and 40 mins. find the time each tank will ta...
Sunday, August 17, 2014

time and work

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A tank can be filled by one tap in 20 mins and by another tap in 25 mins.Both the taps are kept open for 5 mins and then the second tap is ...
Saturday, August 3, 2013

16-time and work

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A can do a piece of work in 9 days and B can do a piece of work in 12 days respectively. If they work only on alternate days, then how...

15-chain rule / time and work

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If 10 workers can dig a trench 23/4 feet long in one day, then how many workers will be required to dig a trench 23 feet long in 3 days tim...

14-chain rule / time and work

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For a certain job, 60 days are required for a group of men. If 8 more are added to the group, then it would take 10 less days to complete t...

13-chain rule / time and work

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8 men or 12 boys can do a piece of work in 50 days. In how many days will 11 boys and 6 men do the job?

12-chain rule / time and work

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6 men or 12 boys can do a piece of work in 40 days. In how many days will 16 boys and 24 men do the job?

11-time and work / chain rule

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For a certain job, 40 days are required for a group of men. If 12 out of the group never turned up for the job, then it took the remaining ...

10-chain rule / time and work

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A student hostel has 280 students. It has ration for 20 days. 40 students leave for home on Christmas after 8 days of staying together. How...

9- chain rule / time and work

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3 men or 5 boys can do a piece of work in 30 days. In how many days will 5 boys and 12 men do the job?
Wednesday, July 24, 2013

8-Time and work

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If 3 men, or 4 boys or 6 women take 10 days to do the job, how much time would they take to complete the same job working together? 

Tank and Cistern

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There is a leak at the bottom of a tank. The leak can empty a full tank in 6 hours. A inlet pipe to the tank fills the tank at 4Litres/min...
Sunday, July 14, 2013

7-time and work

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Machine A and B produce 8000 clips in 4 hr and 6 hr respectively. They work alternately for 1 hour.  Starting first with A, then 8000 chips...