In these type of situations, while calculating downstream speed we will add the speed of river to the speed of boat because the river is pushing the boat downwards and the boat is also moving in the downward direction. This means that the speed of the river is increasing the speed of the boat.
Let the speed of a boat ( or a body) in still water be x km/h and that of stream be y km/h, then
Illustration: A boat goes 9 km in 1 h in still water. it takes one third the time in covering the same distance in the direction of the current. Find the speed of the current.
A. 15 Km/h B. 16 Km/h C. 18 Km/h D. None of these
Answer: C
Solution: Speed of boat instill water = 9 km/h
As it takes one third the time in covering the same distance in the direction of the current
Speed in the direction of the current
= 9 X 3 = 27 Km/h
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
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My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
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Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
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My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.