Mathematics
Medium
Question
A and B walk around a circular track. A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively. If they start at 8 a.m. from the same point in opposite directions, how many times shall they cross each other before 9.30 a.m.?
A
5
B
6
C
7
✓ Official correct answer
D
8
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A
5
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B
6
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C
7
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D
8
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