Two athletes run a race of 400 meters. The ratio of their speeds is 4 : 5. If the faster runner completes the race, how far ahead is he from the slower runner at that instant? MCQ with Answer and Explanation

Two athletes run a race of 400 meters. The ratio of their speeds is 4 : 5. If the faster runner completes the race, how far ahead is he from the slower runner at that instant?
A. 60 meters
B. 100 meters
C. 80 meters
D. 120 meters
Answer: Option C
Solution (By JKSSB Mock Tests)
When the faster runner covers 5 parts = 400 meters, 1 part = 80 meters. In the same time, the slower runner covers 4 parts = 4 * 80 = 320 meters. Distance between them = 400 - 320 = 80 meters.

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Practice More Time Speed and Distance Questions

Question #1
The speed of a boat in still water is 15 km/h and the speed of the current is 3 km/h. Distance traveled downstream in 12 minutes is:
A. 3.6 km
B. 4.8 km
C. 2.4 km
D. 4 km

Correct Answer: Option A


Explanation:
Downstream speed = 15 + 3 = 18 km/h. Time = 12 minutes = 12/60 = 0.2 hours. Distance = Speed * Time = 18 * 0.2 = 3.6 km.

This question belongs to: Maths Time Speed and Distance
Question #2
A cyclist handles 800 meters in exactly 2 minutes 40 seconds. Find his speed in km/h.
A. 22 km/h
B. 18 km/h
C. 20 km/h
D. 16 km/h

Correct Answer: Option B


Explanation:
Time = 2 minutes 40 seconds = 160 seconds. Speed = 800 / 160 = 5 m/s. In km/h = 5 * (18/5) = 18 km/h.

This question belongs to: Maths Time Speed and Distance
Question #3
A train 120 meters long is running at a speed of 54 km/h. How long will it take to cross a platform 180 meters long?
A. 22 seconds
B. 24 seconds
C. 20 seconds
D. 18 seconds

Correct Answer: Option C


Explanation:
Speed of train = 54 * (5/18) = 15 m/s. Total distance = 120 + 180 = 300 meters. Time taken = 300 / 15 = 20 seconds.

This question belongs to: Maths Time Speed and Distance