Question
Ravi started jogging from point X at 12 m/s. 10 seconds
later, Sunil began running from the same point in the same direction and managed to catch Ravi in 30 seconds. What was Sunil’s speed?Solution
ATQ,
Distance covered by Ravi in 10 seconds = 12 × 10 = 120 metres
Relative speed between Sunil and Ravi = 120 ÷ 30 = 4 m/s
Since Sunil caught up, he’s faster.
So, Sunil’s speed = 12 + 4 = 16 m/s
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