A boat can row 10 km/h in still water and the speed of the current is 2 km/h. Find the time taken to row 24 km upstream. MCQ with Answer and Explanation

A boat can row 10 km/h in still water and the speed of the current is 2 km/h. Find the time taken to row 24 km upstream.
A. 4.0 hours
B. 3.5 hours
C. 3.0 hours
D. 2.5 hours
Answer: Option C
Solution (By JKSSB Mock Tests)
Upstream speed = 10 - 2 = 8 km/h. Time taken = 24 / 8 = 3 hours.

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Practice More Time Speed and Distance Questions

Question #1
A train 130 meters long passes a platform 270 meters long in 20 seconds. Find the speed of the train in km/h.
A. 72 km/h
B. 80 km/h
C. 84 km/h
D. 64 km/h

Correct Answer: Option A


Explanation:
Total distance = 130 + 270 = 400 meters. Speed = 400 / 20 = 20 m/s. In km/h = 20 * (18/5) = 72 km/h.

This question belongs to: Maths Time Speed and Distance
Question #2
A transport truck covers a route track of 480 km in 8 hours. How much time will it require to clear a distance path of 360 km given it tracks at the same speed?
A. 5.5 hours
B. 6.5 hours
C. 6.0 hours
D. 7.0 hours

Correct Answer: Option C


Explanation:
Speed of truck = 480 / 8 = 60 km/h. Time taken for 360 km path = 360 / 60 = 6 hours.

This question belongs to: Maths Time Speed and Distance
Question #3
A car travels at a speed of 54 km/h. What is its speed expressed in meters per second?
A. 15 m/s
B. 10 m/s
C. 12 m/s
D. 18 m/s

Correct Answer: Option A


Explanation:
To convert km/h to m/s, multiply by 5/18. Speed = 54 * (5/18) = 3 * 5 = 15 m/s.

This question belongs to: Maths Time Speed and Distance