Thursday, May 28, 2015

SSC Quiz on Boats and Streams: Maths


Maths Quiz on Boats and Streams

Maths Quiz on Boats and Streams

  • 2.In one hour, a boat goes 11 km/hr along the stream and 5 km/hr against the stream. The speed of the boat in still water (in km/hr) is:

    1. 3 km/hr
    2. 5 km/hr
    3. 8 km/hr
    4. 9 km/hr
    Answer And Explanation
    Answer: Option C
    Explanation:
    Note:Speed in still water = 1/2(11+5)= 8 km/hr

Maths Quiz on Boats and Streams

  • 3.A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 mph, the speed of the stream is:

    1. 2 mph
    2. 2.5 mph
    3. 3 mph
    4. 4 mph
    Answer And Explanation
    Answer: Option A
    Explanation:
    Note:

Maths Quiz on Boats and Streams

Maths Quiz on Boats and Streams

Maths Quiz on Boats and Streams

  • 6.A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 5 km in stationary water?

    1. 40 minutes
    2. 1 hour
    3. 1 hour 15 minutes
    4. 1 hour 30 minutes
    Answer And Explanation
    Answer: Option C
    Explanation:
    Note:

Maths Quiz on Boats and Streams

  • 7. Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is:

    1. 16 hours
    2. 18 hours
    3. 20 hours
    4. 24 hours
    Answer And Explanation
    Answer: Option D
    Explanation:
    Note:

Maths Quiz on Boats and Streams

  • 8.A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is:

    1. 2:1
    2. 3:1
    3. 3:2
    4. 4:3
    Answer And Explanation
    Answer: Option B
    Explanation:
    Note:

Maths Quiz on Boats and Streams

  • 9. A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:

    1. 1 km/hr
    2. 1.5 km/hr
    3. 2 km/hr
    4. 2.5 km/hr
    Answer And Explanation
    Answer: Option A
    Explanation:
    Note:

Maths Quiz on Boats and Streams

  • 10.A boat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current respectively?

    1. 2:1
    2. 3:2
    3. 8:3
    4. None of these
    Answer And Explanation
    Answer: Option C
    Explanation:
    Note:

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