17. A and B decide to go for a walk from 8 am to 9:30 am. A takes 2 rounds in 1 hour while B takes 3 rounds in an hour. How many times will they meet on the way in this one and a half hour?
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Answered by
0
Answer:3 times
Step-by-step explanation:
Answered by
0
Answer:
7
Step-by-step explanation:
Relative speed = (2 + 3) km/hr = 5 km/hr This means that A and B cross each other 5 times in a hour and at least 2 times in half an hour
∴ They cross each other 7 times before 9:30 a.m.
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