anonymous
  • anonymous
Time And Work: Question 1: A is 50% more efficient than B. C does half of the work done by A and B together. If C can do a piece of work in 20 days, then how much time will A, B and C take to complete the same work? I am looking for some shortcut trick by which it can be done within 1 minute.. Any suggestions??
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
This question most likely can not be done less than 1 minute :)
kropot72
  • kropot72
The information "A is 50% more efficient than B" is not needed to find the solution. C working alone does 1/20 of the work in 1 day. A and B working together do (1/20) * 2 = 1/10 of the work in 1 day. A, B and C working together do 1/10 + 1/20 = 3/20 of the work in 1 day, and therefore take 20/3 = 6 2/3 days to complete the work.
anonymous
  • anonymous
Oh My God, how couldn't I notice that.... :( Seriously, a big big blunder from my side.. Yes, the very first line is not needed and the solution will take less than 30 seconds even... :) @kropot72, you are great brother.. :)

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kropot72
  • kropot72
You're very welcome :)

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