The speed of a boat in still water is 16 km/h and the speed of the current is 4 km/h. How much distance can the boat cover upstream in 3 hours? MCQ with Answer and Explanation

The speed of a boat in still water is 16 km/h and the speed of the current is 4 km/h. How much distance can the boat cover upstream in 3 hours?
A. 40 km
B. 36 km
C. 44 km
D. 32 km
Answer: Option B
Solution (By JKSSB Mock Tests)
Upstream speed = 16 - 4 = 12 km/h. Distance covered in 3 hours = 12 * 3 = 36 km.

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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. 50 km/h
B. 48 km/h
C. 46 km/h
D. 52 km/h

Correct Answer: Option B


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
A cyclist tracks 1200 meters in exactly 4 minutes. Find his speed index in km/h.
A. 22 km/h
B. 15 km/h
C. 20 km/h
D. 18 km/h

Correct Answer: Option D


Explanation:
Time = 4 minutes = 240 seconds. Speed = 1200 / 240 = 5 m/s. In km/h = 5 * (18/5) = 18 km/h.

This question belongs to: Maths Time Speed and Distance
Question #3
A motorboat registers a speed of 15 km/h in still water. It takes 4 hours to cover a certain distance upstream. If the stream velocity is 3 km/h, find the distance covered.
A. 52 km
B. 56 km
C. 48 km
D. 44 km

Correct Answer: Option C


Explanation:
Upstream speed = 15 - 3 = 12 km/h. Distance = Upstream speed * Time = 12 * 4 = 48 km.

This question belongs to: Maths Time Speed and Distance