Time Left - 12:00 mins
Attempt now to get your rank among 1535 students!
Question 1
A speedboat moves from point A to point B and back again, both points located on the river bank. If the speed of the boat in still water is doubled, then the trip from A to B and back again would take 20% of the time that the motorboat usually spends in the journey.Then the actual speed of the boat in still water is how many time of speed of the river flow?
Question 2
A man rowed against a stream flowing 1.5 km/h to a certain point and then turned back, stopping 2 km short of the place from where he originally started. If the whole time occupied in rowing be 2 hr 10 min and his uniform speed in still water be 4.5 km/h then the man went upstream for a distance of?
Question 3
City P to City Q is a downstream journey on a stream which flows at a speed of 5km/hr. Boats A and B run a shuttle service between the two cities that are 300 kms apart. Boat A, which starts from City P has a still-water speed of 25km/hr, while boat B, which starts from city Q at the same time has a still-water speed of 15km/hr. When and where will the two boats meet for the first time if they start at 9 am?
Question 4
A boat can travel 15 km downstream in 18 min. The ratio of the speed of the boat in still water to the speed of the stream is 4 : 1. How much time will the boat take to cover 10 km upstream?
Question 5
The speed of a boat in still water is 24 kmph and the speed of the stream is 4 kmph. The time taken by the boat to travel from P to Q downstream is 36 minutes less than the time taken by the same boat to travel from Q to R upstream while returning. If the distance between P and Q is 4 km more than the distance between Q and R, what is the distance between P and Q?
Question 6
By walking 11/9 of his usual speed a man covers a certain distance 2 hours earlier than the time taken by him to cover the distance at original speed. Find the time taken by him to cover the distance with usual speed.
Question 7
A boat moves downstream at the rate of 1 km in 7
minutes and upstream at the rate of 5 km an hour. What is the speed of the boat in the still water?
minutes and upstream at the rate of 5 km an hour. What is the speed of the boat in the still water? Question 8
A boat goes downstream in one third the time it takes to go upstream. Then, the ratio between the speed of boat in still water and that of the stream is
Question 9
In a stream running at 2 kmph, a motorboat goes 6 km upstream and back again to the starting point in 33 minutes. Find the speed of the motorboat in still water.
Question 10
If a boat goes 100 km down stream in 10 hours and 75 km upstream in 15 hours, then the speed of the stream is
- 1535 attempts
- 25 upvotes
- 38 comments
Nov 2SSC & Railway
