Quiz Discussion

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:

Course Name: Quantitative Aptitude

  • 1]

    4

  • 2]

    5

  • 3]

    6

  • 4]

    10

Solution
No Solution Present Yet

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# Quiz
1
Discuss

A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream.

  • 1] 2 hours
  • 2] 3 hours
  • 3] 4 hours
  • 4] 5 hours
  • 5] None of these
Solution
2
Discuss

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
Solution
3
Discuss

On a river , Q is the mid - point between two points P and R on the same bank of the river. A boat can go from P to Q and back in 12 hours, and from P to R in 16 hours 40 minutes. How long would it take to go from R to P?

  • 1]

    \({ \text{3}}\frac{3}{7}\) hr

  • 2]

    5 hr

  • 3]

    \({ \text{6}}\frac{2}{3}\) hr

  • 4]

    \({ \text{7}}\frac{1}{3}\) hr

Solution
4
Discuss

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 hr 15 min
  • 4] 1 hr 30 min
Solution
5
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
6
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
7
Discuss

A man's speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man's speed against the current is:

  • 1] 8.5 km/hr
  • 2] 9 km/hr
  • 3] 10 km/hr
  • 4] 12.5 km/hr
  • 5] None of these
Solution
8
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 km/hr
  • 2] 5 km/hr
  • 3] 6 km/hr
  • 4] 10 km/hr
Solution
9
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
10
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
# Quiz