A boat moves upstream at a speed of 11 km/h and downstream at 16 km/h. Find the speed of the boat in still water. MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Time Speed and Distance Questions
Question #1
Report Error
In a 400-meter race, A finishes in 44 seconds and B finishes in 50 seconds. By what distance does A beat B?
Correct Answer: Option A
Explanation:
Speed of B = 400 / 50 = 8 m/s. Distance covered by B when A crosses the finish line at 44 seconds = 8 * 44 = 352 meters. Winning margin = 400 - 352 = 48 meters.
Speed of B = 400 / 50 = 8 m/s. Distance covered by B when A crosses the finish line at 44 seconds = 8 * 44 = 352 meters. Winning margin = 400 - 352 = 48 meters.
This question belongs to:
Maths
Time Speed and Distance
Question #2
Report Error
A train 200 meters long covers a telegraph post in 10 seconds. Find the time it takes to cover a bridge of 300 meters.
Correct Answer: Option B
Explanation:
Speed of train = 200 / 10 = 20 m/s. Total distance to cross bridge = 200 + 300 = 500 meters. Time = 500 / 20 = 25 seconds.
Speed of train = 200 / 10 = 20 m/s. Total distance to cross bridge = 200 + 300 = 500 meters. Time = 500 / 20 = 25 seconds.
This question belongs to:
Maths
Time Speed and Distance
Question #3
Report Error
A merchant van covers 120 km at 40 km/h, 180 km at 60 km/h and 100 km at 50 km/h. Find the net average speed.
Correct Answer: Option A
Explanation:
Total distance = 120 + 180 + 100 = 400 km. Total time = (120/40) + (180/60) + (100/50) = 3 + 3 + 2 = 8 hours. Average speed = 400 / 8 = 50 km/h.
Total distance = 120 + 180 + 100 = 400 km. Total time = (120/40) + (180/60) + (100/50) = 3 + 3 + 2 = 8 hours. Average speed = 400 / 8 = 50 km/h.
This question belongs to:
Maths
Time Speed and Distance
No comments yet. Be the first to start the discussion!