Two cyclists start on a circular track from a given point but in opposite directions with speeds of 4 m/sec and 6 m/sec respectively. If the circumference of the circle is 240 metres, after what time will they meet at the starting point for the first time? A) 240 sec B) 180 sec C) 120 sec D) 300 sec

• (6-4)x=240 ==> x=120 seconds
  
  why 240 is, since they had to meet for the first time
• 5 years agoHelpfull: Yes(1) No(1)
• 240/4=60
  240/6=40
  lcm(40,60)=120sec answer
• 4 years agoHelpfull: Yes(1) No(0)