In each of the following questions. select the missing number from the given responses.
Ram and Ravi start together from a point in opposite direction on scooters. Ram’s speed is 21 km/h and Ravi’s speed is 15 km/h. What will be the distance between them after 20 minutes ?
Ram and Ravi are moving in opposite direction .
Speed of Ram = 21 km/hr
Speed of Ravi = 15 km/hr
Relative speed = 21 + 15 = 36 km/hr
Time = 20 min = $$\frac{1}{3}$$ hour
using Distance = Speed x Time
Distance = 36 x $$\frac{1}{3}$$ = 12 km
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