A, B and C start at the same direction to run around a circular stadium. A completes a round in 252 sec, B in 308 sec and C in 198 sec, all starting at the same point. After what time will they meet again at the starting point?
a)26min 18sec
b)42min 36sec
c)45min
d)46min 12 sec

• LCM of (252,308,198) = 2772.
  
  2772/60 = 46 min 12 sec.
• 9 years agoHelpfull: Yes(6) No(0)
• Take the LCM of the three ,tht is 252,308,198 and uh get 2772 sec so the answer is 46min 12sec
• 6 years agoHelpfull: Yes(1) No(0)
• answer is 45mins
• 6 years agoHelpfull: Yes(0) No(1)