1.

Two toy cars X and Y run at average speed of 0.5 km/hr and 1.5 km/hr respectively. If car X moves in South direction and toy Y in East direction beginning from the same origin at the same time, what will be the distance between the two after 4 hours?

A. 7 km
B. 2√10 km
C. √39 km
D. √19 km
Answer» C. √39 km


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