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Time and work problems-Need answers

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Joined: 19 Jun 2010
Posts: 2
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Time and work problems-Need answers [#permalink] New post 17 Aug 2010, 06:57



Question Stats:

0% (00:00) correct 100% (00:36) wrong based on 1 sessions
1. Beginning with the second day,the amount of work ram can do per day keeps
doubling everyday he works.Saleem can always do the work done by ram in 40%
less time.Owing to this increasing ability,saleem and ram complete the job
together in 2 days.How many days would it have taken if their efficiencies
had remained constant?
2.A man starts a piece of work.Starting from the second day onwards,every
day a new man joins.With every new man joins.With every new man joining,the
work that each man can do per day doubles.The work is completed in ys.On
which day would they have completed the work,if the work taht each of them
could do per day had remained constant?
3. Jadeja,bhangar,balaji and dravid can do a piece of work in 8,16,32 and 64
days.Dravid starts the work and balaji joins him after1/4 of the work is
done.Bhangar joins them after the half the work is done and jadeja joins
them after 3/4 of the work is done.How many days does it take to complete
the work?
4.It takes bhuvan,bheem and bahadhur 18,24,and 36 days to do a piece of
work.Each of them does the same amount of work and they complete the work in
26days.Instead if bheem did extra work equal to the sum of y th parts of the
works done by bhuvan and bahadhur,they could have completed the work one day
earlier.How much more work did bheemdo in the second case as compared to
that done by him in the first case?

1.praveen,shiva and sunny each working alone takes 20,10,5 days to make 2000 hats,each.If the defects in their production are 10%,20% and 40% approximately.How many days will it take them working together to make 10,000hats?

2.Vivek,ramesh,bhuvan divide a work amongst themselves in the ratio 2:3:5.Their rates of work are in the ratio 1:2:3.It takes vivek 12 days to complete his part.What is the amount of work completed by them in 8 days from the start?

3.sonia can complete a piece of work in 20 days,while priyanka and anjali can do it in 30 days each.sonia works on the first day.sonia and priyanka work on the second day and sonia,priyanka and anjali work on the third day.Also sonia works on the fourth day.Sonia,priyanka work on the fifth day and sonia,priyanka and anjali work on the sixth day and this cycle is repeated till the work is completed.In how many days is the work completed?

4.Niranjan,rajesh and vinayak can complete a piece of work in 10,15 and 12 days.All the three of them working and after a certain number of days(y).Niranjan stopped working and rajesh stopped working exactly(y) days before the work got completed,In how many integral number of days did the work get completed?
please provide step-by step procedure to arrive at the answer.Thanks
Expert Post
Ms. Big Fat Panda
Ms. Big Fat Panda
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GMAT ToolKit User
Re: Time and work problems-Need answers [#permalink] New post 17 Aug 2010, 10:32
Expert's post
These are way too many questions to be posted as one thread. Kindly search for the questions on the forum before you decide to ask us. Please be considerate of other users who might want to help you and respect their time.

Here is a link of work problems and a general method of how to solve them: work-word-problems-made-easy-87357.html

And a link of a lot of work-rate problems that you might find which have solutions posted across GMAT Club: work-rate-questions-i-collected-from-gmat-club-73382.html#p544541

Re: Time and work problems-Need answers   [#permalink] 17 Aug 2010, 10:32
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