Q. The work done by (x-1) men in (x+1) days and the work done by (x+1) men in (x+2) days are in ratio 5:6. Find x?

• If M1 persons can do W1 work in D1 days and M2 persons can do W2 works in D2 days then we can say
  M1D1W2 = M2D2W1
  so from this concept we can write the equation as follows :
  (x-1)(x+1)/(x-1)(x+2) = 5/6
  by solving this we get a equation as 6x-6=5x+10
  so solving for x we get x = 16
• 11 years agoHelpfull: Yes(1) No(0)
• according to the formula-
  m1d1w1=m2d2w2
  (x-1)(x+1)/(x+1)(x+2)=5/6
  x^2-1/x^2+3x+2=5/6
  on solving we get x=16
• 11 years agoHelpfull: Yes(0) No(0)