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 a.m
Choose the correct choice from the following answers.
A) 5	B) 6	C) 7	D) 8	E) 9
Explanation:   Relative speed = (2+3)= 
<gadget id="calculator">(2+3)</gadget>
<output>5</output>
5 rounds per hour   So, they cross each other 5 times in an hour hence, they cross 5 times before 9 a.m   5nswer: Option 5
<result>A</result>
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 a.m