Quiz Discussion

A boat moves downstream at the rate of 1 km in \({ \text{7}}\frac{1}{2}\) minutes and upstream at the rate of 5 km an hour. What is the speed of the boat in the still water?

 

Course Name: Quantitative Aptitude

  • 1]

    8 km/hour

  • 2]

    \({ \text{6}}\frac{1}{2}\) km/hour

  • 3]

    4 km/hour

  • 4]

    \({ \text{3}}\frac{1}{2}\) km/hour

Solution
No Solution Present Yet

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# Quiz
1
Discuss

The speed of a boat along the stream is 12 km/hr and against the stream is 8 km/hr. The time taken by the boat to sail 24 km in still water is?

  • 1] 2 hrs
  • 2] 3 hrs
  • 3] 2.4 hrs
  • 4] 1.2 hrs
Solution
2
Discuss

A man can row 6 km/hr in still water. If the speed of the current is 2 km/hr he takes 4 hours more in upstream than the downstream. The distance is?

  • 1] 30 km
  • 2] 24 km
  • 3] 20 km
  • 4] 32 km
Solution
3
Discuss

A boat travels 24 km upstream in 6 hours and 20 km downstream in 4 hours. Then the speed of boat in still water and the speed of current are respectively.

  • 1] 4 kmph and 3 kmph
  • 2] 4.5 kmph and 0.5 kmph
  • 3] 4 kmph and 2 kmph
  • 4] 5 kmph and 2 kmph
Solution
4
Discuss

A motorboat in still water travels at a speed of 36 km/hr. It goes 56 km upstream in 1 hour 45 monutes. The time taken by it to cover the same distance down the stream will be-

  • 1] 1 hour 24 minutes
  • 2] 2 hour 21 minutes
  • 3] 2 hour 25 minutes
  • 4] 3 hour
Solution
5
Discuss

A boat while dowenstream in a reiver converd a distance of 50 miles at an average speed of 60 miles per hour. While returning , because of the water resistance , it took 1 hour 15 minutes to cover the same distance What was the average speed during the whole journey?

  • 1] 40 mph
  • 2] 48 mph
  • 3] 50 mph
  • 4] 55 mph
Solution
6
Discuss

P, Q and R are three towns on a river which flows uniformly. Q is equidistant from P and R. I row from P to Q and back in 10 hours and I can row from P to R in 4 hours. Compare the speed of my boat in still water with that of the river.

  • 1] 4 : 3
  • 2] 5 : 3
  • 3] 6 : 5
  • 4] 7 : 3
Solution
7
Discuss

A boat takes half time in moving a certain distance downstream than upstream. The ratio of the speed of the boat in still water and that of the current is?

  • 1] 2 : 1
  • 2] 4 : 3
  • 3] 1 : 2
  • 4] 3 : 1
Solution
8
Discuss

a man can row 8 km/hr in still water and he find that it takes thrice as long to row upstream as to row downstream to the same point. What is the speed of the current?

  • 1]

    1 kmph

  • 2]

    2 kmph

  • 3]

    3 kmph

  • 4]

    4 kmph

Solution
9
Discuss

A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:

  • 1]

    4

  • 2]

    5

  • 3]

    6

  • 4]

    10

Solution
10
Discuss

A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, how far is the place?

  • 1] 2.4 km
  • 2] 2.5 km
  • 3] 3 km
  • 4] 3.6 km
  • 5] None of these
Solution
# Quiz