In a 1000-meter race, sprinter A beats sprinter B by 100 meters, and sprinter B beats sprinter C by 50 meters. By how many meters does X beat Z in the same race? (Assume consistent speeds) MCQ with Answer and Explanation

In a 1000-meter race, sprinter A beats sprinter B by 100 meters, and sprinter B beats sprinter C by 50 meters. By how many meters does X beat Z in the same race? (Assume consistent speeds)
A. 145 meters
B. 155 meters
C. 150 meters
D. 140 meters
Answer: Option A
Solution (By JKSSB Mock Tests)
When A covers 1000m, B covers 900m. When B covers 1000m, C covers 950m. When B covers 900m, C covers 950 * (900/1000) = 855m. Therefore, A beats C by 1000 - 855 = 145 meters.

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Practice More Time Speed and Distance Questions

Question #1
A train 120 meters long running at 45 km/h crosses a bridge in 30 seconds. Find the length of the bridge.
A. 255 meters
B. 270 meters
C. 285 meters
D. 230 meters

Correct Answer: Option A


Explanation:
Speed of train = 45 * (5/18) = 12.5 m/s. Total distance covered in 30 seconds = 12.5 * 30 = 375 meters. Length of bridge = 375 - 120 = 255 meters.

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Question #2
A boat can row 11 km/h in still water and the velocity index of the current stream is 3 km/h. Find the time span taken to row 32 km upstream.
A. 3.5 hours
B. 5.0 hours
C. 4.5 hours
D. 4.0 hours

Correct Answer: Option D


Explanation:
Upstream speed = 11 - 3 = 8 km/h. Time taken = 32 / 8 = 4 hours.

This question belongs to: Maths Time Speed and Distance
Question #3
A train passes a static observer in 6 seconds and a platform 160 meters long in 14 seconds. Find the length of the train.
A. 150 meters
B. 100 meters
C. 140 meters
D. 120 meters

Correct Answer: Option D


Explanation:
Time to cross the platform distance alone = 14 - 6 = 8 seconds. Speed of train = 160 / 8 = 20 m/s. Length of train = Speed * Time to pass observer = 20 * 6 = 120 meters.

This question belongs to: Maths Time Speed and Distance