A runner covers a circular path of radius 70 meters in 44 seconds. What is his speed in km/h? MCQ with Answer and Explanation

A runner covers a circular path of radius 70 meters in 44 seconds. What is his speed in km/h?
A. 40 km/h
B. 30 km/h
C. 45 km/h
D. 36 km/h
Answer: Option D
Solution (By JKSSB Mock Tests)
Circumference of circular path = 2 * (22/7) * 70 = 440 meters. Speed = 440 / 44 = 10 m/s. In km/h = 10 * (18/5) = 36 km/h.

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Practice More Time Speed and Distance Questions

Question #1
A luxury car handles a tracking route sector of 240 km. It finishes the first half segment stretch at 40 km/h and the second half sector at 60 km/h. Find the mean average speed recorded across the full route.
A. 48 km/h
B. 46 km/h
C. 50 km/h
D. 52 km/h

Correct Answer: Option A


Explanation:
Average Speed across sectors = 2xy / (x + y) = (2 * 40 * 60) / (40 + 60) = 4800 / 100 = 48 km/h.

This question belongs to: Maths Time Speed and Distance
Question #2
An emergency truck spans 450 meters in 25 seconds. Find its speed in km/h.
A. 60 km/h
B. 68 km/h
C. 72 km/h
D. 64.8 km/h

Correct Answer: Option D


Explanation:
Speed = 450 / 25 = 18 m/s. In km/h = 18 * (18/5) = 324 / 5 = 64.8 km/h.

This question belongs to: Maths Time Speed and Distance
Question #3
A boat crew row a boat 24 km downstream in 3 hours and tracks the identical loop back upstream in 6 hours. Find the baseline speed of the boat in still water.
A. 5 km/h
B. 7 km/h
C. 8 km/h
D. 6 km/h

Correct Answer: Option D


Explanation:
Downstream tracking speed = 24 / 3 = 8 km/h. Upstream tracking speed = 24 / 6 = 4 km/h. Speed in still water = (8 + 4) / 2 = 12 / 2 = 6 km/h.

This question belongs to: Maths Time Speed and Distance