Quiz Discussion

If the speed of a boat in still water is 20km/hr and the speed of the current is 5km, then the time taken by the boat to travel 100 km with the current is?

Course Name: Quantitative Aptitude

  • 1] 2 hours
  • 2] 3 hours
  • 3] 4 hours
  • 4] 7 hours
Solution
No Solution Present Yet

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# Quiz
1
Discuss

A boat covers a certain distance downstream in 1 hour, while it comes back in \(1\frac{1}{2}\) hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?

 

  • 1] 12 kmph
  • 2] 13 kmph
  • 3] 14 kmph
  • 4] 15 kmph
  • 5] None of these
Solution
2
Discuss

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
Solution
3
Discuss

The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:

  • 1] 1.2 km
  • 2] 1.8 km
  • 3] 2.4 km
  • 4] 3.6 km
  • 5] None of these
Solution
4
Discuss

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 kmph
  • 2] 5 kmph
  • 3] 8 kmph
  • 4] 9 kmphr
Solution
5
Discuss

A boat can tarvel 36 km upstream in 5 hours. If the speed of the stream is 2.4 kmph, how much time will the boat take to cover a distance of 78 km downstream?(in hours)

  • 1] 5 hours
  • 2] 6.5 hours
  • 3] 5.5 hours
  • 4] 8 hours
Solution
6
Discuss

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?

 

  • 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
7
Discuss

There is a road beside a river. Two friends started from a place A moved to a temple situated at another place B and then returned to A again. One of them moves on a cycle at a speed of 12 km/hr, while the other sails at a speed of 10km/hr. If the river flows at a speed of 4km/hr, which of the two friends will return to place A first.

  • 1]

    7.4 km/h

  • 2]

    8.4 km/h

  • 3]

    2.3 km/h

  • 4]

    8.6 km/h

Solution
8
Discuss

A man rows 12 km in 5 hours against the stream and the speed of current being 4 kmph. What time will be taken by him to row 15 km with the stream?

  • 1]

    1 hour \({ \text{27}}\frac{7}{{13}}\) minutes

  • 2]

    1 hour \({ \text{24}}\frac{7}{{13}}\) minutes

  • 3]

    1 hour \({ \text{25}}\frac{7}{{13}}\) minutes

  • 4]

    1 hour \({ \text{26}}\frac{7}{{13}}\) minutes

Solution
9
Discuss

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] Cannot be determined
  • 5] None of these
Solution
10
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
# Quiz