Question

Three men start together to travel the same way around a circular track of 11 km. Their speeds are 4, 5.5 and 8 kmph respectively. When will they meet at the starting point for the first time?

Answer 1

Answer:

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