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If A and B together can complete a work in 20 days and A and C together can complete the work in 30 days then in how many days A ,B and C will complete the work together?

If A and B together can complete a work in 20 days and A and C together can complete the work in 30 days then in how many days A ,B and C will complete the work together?

Grade:12th Pass

2 Answers

Forum Team
94 Points
5 years ago
Dear Animesh,
 
Just to inform you that we have blocked the user who answered your question in an inappropriate way. Please note that this is a public forum where any student from any part of the world can come to share his knowledge but at the same time some people do this type of activity as well which happened in this case. And hence, we block these users as soon as we get these things noticed.
 
We apologize for the inconvenience ccaused to you and soon you will get proper answer to your question.
 
Thanks
Forum Team
Sayantan Garai
117 Points
5 years ago
Calculate part of work done by each person each day. Calculate total part of work done in one part of time (in this case one day) by the total no. of persons. Then find out time required for 1 (whole) part of the work.
This process is applicable for most numericals of this type.

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