SOLUTION: A alone can do a piece of work in 6 days and B alone can do it in 8 days.A and B undertook to do it for Rs.320 with the help of C , they finished it in 3 days.How much is paid to c

Question 842639: A alone can do a piece of work in 6 days and B alone can do it in 8 days.A and B undertook to do it for Rs.320 with the help of C , they finished it in 3 days.How much is paid to c? Plese solve this with process.
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!

 

Hi,

 1/6 + 1/8 + 1/x = 1/3         |Multiplying thru by 24x so as all denominators = 1

   4x + 3x + 24 = 8x

     x = 24hr, time it would take C alone 

A + B + C = 3/6 + 3/8 + 3/24 = whole job

  = Rs.40  paid to C

 

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