Mathematics
Medium
Question
The wheels revolve round a common horizontal axis. They make 15, 20 and 48 revolutions in a minute respectively. Starting with a certain point on the circumference down wards. After what interval of time will they come together in the same position?
A
1 min
✓ Official correct answer
B
2 min
C
3 min
D
None
Community credibility
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A
1 min
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B
2 min
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C
3 min
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D
None
No member explanations yet for this option.