Two boys starting from the same place walk at a rate of 5 kmph and 5.5 – McqOptions

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1.	Two boys starting from the same place walk at a rate of 5 kmph and 5.5 kmph respectively. What time will they take to be 8.5 km apart, if they walk in the same direction?
A.	17 hrs
B.	25 hrs
C.	31 hrs
D.	45 hrs
Answer» B. 25 hrs

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