Roni and Willy had a 100m race. Roni covered the distance in 45 sees and Willy covered the distance in 36 secs. Willy beats Roni by how much distance?
Maths / Time, Speed and Distance MCQs — Multiple-choice practice
- A. None of these
- B. 20m
- C. 22.5m
- D. 25m
Correct answer
20m
Explanation
Explanation Roni covers 100 meters in 45 seconds. Willy covers 100 meters in 36 seconds. Roni's speed: Speed of Roni = 100 m / 45 s = 20 /9 m/s Distance Roni covers in 36 seconds: Distance = Speed × Time = 20/9 × 36 = 80 m Since Willy finishes the race (100 m) when Roni has only covered 80 m, Willy beats Roni by: 100 − 80 = 20 m
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