Railways
Quantitative Aptitude
LCM & HCF
Sample Paper
HCF and LCM Sample Test Paper-2
question_answer
Four runners started running simultaneously from a point on a circular track they took 200 sec, 300 sec, 360 sec and 450 sec to complete one round, after how much time do they meet at the starting point for the first time?
A) 1800 sec
B) 3600 sec
C) 2400 sec
D) 4800 sec
Correct Answer:
A
Solution :
[a] Required time = LCM of 200, 300, 360, 450 sec = 1800 sec.