The speed of the boat in still water is 20 km/hr and the speed of the stream is 5 km/hr. Find the downstream speed and the upstream speed.

Boats and Streams

Quiz
•
Mathematics
•
Professional Development
•
Hard

N.A.K. N.A.K.
Used 18+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
55 km/hr,14.5 km/hr
45 km/hr,11.5 km/hr
35 km/hr,20 km/hr
25 km/hr,15 km/hr
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A boat running downstream covers a distance of 24 km in 3 hours while for covering the same distance upstream, it takes 6 hours. What is the speed of the current?
3 km/hr
4 km/hr
2 km/hr
5 km/hr
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A man can row 10 km downstream in 15 minutes and the same distance upstream in 20 minutes. Find the speed of the boat in still water and the speed of the stream
11 km/hr,11.5km/hr
35 km/hr,5 km/hr
35 km/hr,10 km/hr
45 km/hr,15 km/hr
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Speed of the boat in still water is 15 km/hr and the speed of the current is 7 km/hr. Find the total time taken by a man rowing to a place at a distance of 88 km and back.
15 hrs
25 hrs
35 hrs
20 hrs
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A boat takes 2.5 hours less to travel 100 km downstream than to travel 75 km upstream. If the speed of the current is 5 km/hr, find the speed of the boat in still water.
40 km/hr
35 km/hr
25 km/hr
15 km/hr
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A man can row 8 km/hr in still water. If the speed of the current is 2 km/hr and it takes 4 hours to a man to row a place and come back, then how far is the place?
15 km
20 km
35 km
40 km
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A boat running upstream takes 4 hours 24 minutes to cover a certain distance, while it takes 2 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water respectively?
2:1
4:3
8:3
5:2
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