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Posted by: Anonymous |
Posted On: 2010-10-27 12:42:34 |
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good |
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Posted by: Anonymous |
Posted On: 2010-10-26 03:28:41 |
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genious |
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Posted by: Anonymous |
Posted On: 2010-10-25 11:05:17 |
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super |
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Posted by: Anonymous |
Posted On: 2010-10-07 05:36:16 |
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how to calculate?
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Posted by: Anonymous |
Posted On: 2010-10-05 10:03:28 |
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genious |
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Posted by: Anonymous |
Posted On: 2010-06-19 06:53:18 |
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instead of dealing with fractions if i just assume the work that has to be done as the L.C.M of the number of days taken by the individuals then the solving procedure becomes easier and quicker and less probability of committing mistakes i.e We know L.C.M of 15 and 20 is 60. So let the work that A and B finish in 15 and 20 days be 60 units. Now the we know that WD=R*T . Therefore, the rate at which these 2 work are 4 and 3 respectively. Now when they work together there rates get added up so the effective rate now becomes 7. so now to complete the total 60 units of work together they would take 60/7 days. |
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