Four runners A, B, C and D are running around in a circle, 2430 meter in circumference, at 30 mpm, 24 mpm, 20 mpm and 12 mpm respectively. If they start at the same time from the same point in the same direction, when will they be together again?
Help us build a Free and Comprehensive Preparation portal for various competitive exams by providing us your valuable feedback about Apti4All and how it can be improved.