Cyclists
Logic
Level
1
If there are 70 cyclists in a race and the race organizers set off one cyclist every two minutes; how many minutes does it take to set them all off?
70
138
140
69
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1 solution
Seeing as the first cyclist is set off on the zero minute mark, the second on the second, the third on the fourth...etc. By the time the final cyclist is set off, it will be the one hundred and thirty eighth minute. Seeing as you do not need to wait an extra two minutes after that, it ends there.