Question
When travelling downstream, a boat takes 6.25 hours to
travel 225 km. If the speed of the stream is (1/3)rd of downstream speed of the boat, then find the time taken by the boat to cover 240 km in still water.Solution
Downstream speed of the boat = 225/6.25 = 36 km/hr Speed of the stream = 36 x (1/3) = 12 km/hr So, speed of the boat in still water = 36 – 12 = 24 km/hr Required time taken = 240/24 = 10 hours
More Boats and streams Questions
Find the wrong number in the given number series.
20, 120, 600, 2400, 7000, 14400
79, 152, 231, 314, 405, 500
Find the wrong number in the given number series.
630, 180, 60, 24, 12, 8, 5Find the wrong number in given number series.
1177, 1161, 1125, 1061, 961, 837.
6, 24, 125, 720, 5040, 40320
60, 63, 71, 86, 125, 145
4, 11, 36, 164, 986, 7204
32, 16, 24, 60, 207, 945
Find the wrong number in the given number series.
9, 10, 65, 27, 217, 50Find the wrong number in the given number series.
29, 60, 123, 250, 515, 1016
Relevant for Exams:
