Three men start together to travel the same way around a circular track of 11 Km.Their speeds are 4, 5.5 and 8 Km/hr. respectively. After what time will they meet at the starting pint for the first time ?

• Ans.-22 hrs
  formula for a circular race(first time meet at starting point)=LCM{L/s1,L/s2,L/s3};
  =LCM{11/4,11/5.5,11/8}=LCM{11/4,22/11,11/8}={LCM of numerater/HCF of denomereter}
  =22/1=22 hrs
• 11 years agoHelpfull: Yes(7) No(0)
• After 22 hrs
  
• 12 years agoHelpfull: Yes(3) No(2)
• After 22 hrs
  First person will cover complete track 8 times.
  2nd person will cover track 5.5*22/11= 11 times
  3rd person will cover track 8*22/11= 16 times.
• 12 years agoHelpfull: Yes(2) No(5)
• sorry i put a wrong answer,the right answer will be 22 hours,aman is right
• 12 years agoHelpfull: Yes(1) No(0)
• first we will take lcm of all speeds
  lcm of 4,5.5 and 8 is 44
  time will they meet at the starting pint for the first time 44/11=4 hrs(ans)
  
  
• 12 years agoHelpfull: Yes(0) No(4)