Q. Sreeji can stich a suit in 3hrs less time than premji. Sreeji stiches it alone for 4 hrs and then premji takes over and. Completes it. If altogether 14 hrs were required to stich the suit, how many hours would premji take a stich the same alone?

• 15 Hours
  If Premji takes 'x' hours to stich then Sreeji takes 'x-3' hours.
  Sreeji 4 hours work= 4/(x-3), Remaining work=1-[4/(x-3)]=(x-7)/(x-3)
  Given total 14 hours required,So Only Premji works for 10 hours
  (10/x)=(x-7)/(x-3), x^2-17x+30=0,(x-15)(x-2)=0,So x=15
• 11 years agoHelpfull: Yes(0) No(0)