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14 Nov 2003, 12:22
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If one typist can type a certain manuscript in 8 minutes, while another typist can type the same manuscript in 12 minutes, how long would it take both typists, working simultaneously, to type the manuscript?
(A) 3 minutes, 36 seconds
(B) 4 minutes, 48 seconds
(C) 5 minutes, 15 seconds
(D) 6 minutes
(E) 10 minutes
(A) 3 minutes, 36 seconds
(B) 4 minutes, 48 seconds
(C) 5 minutes, 15 seconds
(D) 6 minutes
(E) 10 minutes
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14 Nov 2003, 12:46
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shubhangi
How did u get that?
The problem talks to me! haha... j/k. I'll show how I got it once some people get a chance to work on it. Meanwhile check your messagebox, I sent it to you.
14 Nov 2003, 19:11
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hey ,
this is the way i would do it ...hope you find it use full.
since the sum has given you one two diff. ppl doing the same piece of work in two diff. periods of time break the work done by them into the same time frame. in this case check how much each one does in 1 minute . its works out to 1/8of the work and 1/12 of the work . add the work that can be done by them together in 1 minute. works out to 5/24. the reciprocal will give you the time taken by them to finish the piece wrk when the work together (in tandem).
you can use this approach in all work related problems of this kind.
cheers
adarsh
ps. be sure to tell me if theres anypart u didnt comprehend!!!!
this is the way i would do it ...hope you find it use full.
since the sum has given you one two diff. ppl doing the same piece of work in two diff. periods of time break the work done by them into the same time frame. in this case check how much each one does in 1 minute . its works out to 1/8of the work and 1/12 of the work . add the work that can be done by them together in 1 minute. works out to 5/24. the reciprocal will give you the time taken by them to finish the piece wrk when the work together (in tandem).
you can use this approach in all work related problems of this kind.
cheers
adarsh
ps. be sure to tell me if theres anypart u didnt comprehend!!!!
