Jack dances clockwise around the Maypole, making one revolution every five seconds. Starting from a point diametrically opposite Jack’s starting point, Jill dances anticlockwise, making one revolution every six seconds.
How many times do they pass each other in the first minute?
Select one option, then click Submit.
11
15
22
30
60
Select an option, then submit.
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Junior Mathematical Challenge 2005 (2005)
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