Ajit, Bilash and Chinu start at the same time in the same direction to run around a circular stadium. Ajit completes a round in 252 seconds, Bilash in 308 seconds and Chinu in 198 seconds, all starting at the same point. After what time will they all be again at the starting point?
Explanation: তিন জনেরই একই সময়ে আবার starting point এ পৌঁছাবে তখন, তাদের সকলের সময়ের L.C.M. হবে। 252, 308 এবং 198 এর L.C.M. 2772. অর্থাৎ \(2772\) seconds \(= 46\) minutes \(12\) seconds.
