A and B walk around a circular track....

A and B walk around a circular track. They start at 8 a.m. from the same point in the opposite directions. A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively. How many times shall they cross each other before 9.30 am.? `5` b. `6` c. `7` d. `8`

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S CHAND IIT JEE FOUNDATION-DISTANCE, TIME AND SPEED -Section-A (Question Bank-21(a))

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