Question
The speed of a boat in still water is 32km/hr and the speed of the current is 8km/hr. It takes a total of 15hours to row to upstream from Point A to B and downstream from Point B to C. If the distance between A to C is two-fifth the distance between B and C then what is the distance between B and C? (Where BC < A
- B
Let the distance from B to C be xkm ∴ A to C = 2x/5 km Upstream speed = 32 – 8 = 24 km/hr Downstream speed = 32 + 8 = 40km/hr Now, 7x/(5 × 24) + x/40 = 15 7x/120 + x/40 = 15 (7x + 3x)/120 = 15 x = 180 kmMore Boats and streams Questions
- A boat takes 12 hours longer to cover 378 km upstream than it does to cover the same distance downstream. The speed of the stream is 12 km/h. What is the d...
- Motor boat covers a certain distance downstream in 10 hours. It covers the same distance upstream in 15 hours. If the speed of the water is 9 km/hr, then ...
- The water in a river flow at the rate of 4 km per hour if the width and depth of the river are 8 M and 4 m respectively then how much water will enter the ...
- A man can row boat at 9 kmph in still water. If the velocity of the current is 6 kmph and he takes 2 hour to row to a place and come back, how far is the p...
- The speed of the boat in still water is ‘y’ % more than the speed of the boat in upstream. The time taken by the boat to cover (2d+50) km distance in downs...
- A boat covers 35 km downstream in 2 h and covers the same distance upstream in 7 h. Find the speed (in km/h) of the boat in still water.
- A boat goes 24 km downstream in 3 hour and the same distance upstream in 6 hours. The speed of the boat in still water is:
- A captain can navigate a ship at a speed of 5 km/hr in calm waters. With a current moving at a speed of 3 km/hr, he takes 12 hours longer to travel 'd' km ...
- Distance between a point of A and point B in a river is 32 km and the flow of the stream is from A to B. If the speed of the boat is 10 km/h and speed of t...
- A boat goes 30 km downstream in 3 hour and the same distance upstream in 5 hours. The speed of the boat in still water is:
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
