if the ratio of work done by (x-1) men in (x+1)days to the work done by (x+2)men in (x-1)days is 9:10, then x is equal to

• (x-1)(x+1)/(x-1)(x+2)=9/10
  =>(x+1)/(x+2)=9/10
  =>x=8 ANS
• 12 years agoHelpfull: Yes(19) No(0)
• {(x-1)(x+1)}/{(x+2)(x-1)} =9/10
  10x+10=9x+18
  x=8
• 12 years agoHelpfull: Yes(5) No(1)
• (x-1)/(x+1):(x+2)/(x-1)=9:10
  so x=8
• 12 years agoHelpfull: Yes(2) No(1)
• 8 is correct answer
  sol:(x-1)(x+1)/(x+2)(x-1)=9/10
  then from above eq:(x+1)/(x+2)=9/10
  by observing eq:we can say that..x=8
• 12 years agoHelpfull: Yes(1) No(0)
• answer is 8
  
• 12 years agoHelpfull: Yes(1) No(2)