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Time, Speed & Distance · Question 24 of 71

Question 24

EasyOriginal question

Kavya jogs at 8 km/h and Rohan cycles at 14 km/h. Both start from the same gate at the same time along the same road in the same direction. How far apart are they after 45 minutes?

Options for question 24

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. Same direction: relative speed = 14−8=614 - 8 = 6 km/h.

  2. Gap after 45 min =6×34=4.5= 6 \times \frac{3}{4} = 4.5 km.

Worth noting

16.5 km uses the sum of speeds, which is only right if they go in opposite directions.

Concept
Relative speed in the same direction is the difference of speeds
Typical time
35 s
Your time
—
The rule this testsRelative speed
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