ICSE Class 10 Answered
Sir / Mam can you please solve this quadratic equation on pythogoras theorem :-
cyclist A moves at a speed of of x km/h from a place in the eastern direction . cyclist B moves (x+3)km/h from the same place towards the northern direction . if after 2 hours the distance between them is 30 km find the value of x.
Asked by abhi611 | 07 May, 2018, 06:10: PM
Expert Answer
According to the question,
Cyclist A moves at a speed of x km/h then after 2 hours its distance will be (x/2)2
Similalry cyclist B will cover (x+3)/2 distance after 2 hours.
Using Pythagoras
(x/2)2 + [(x+3)/2]2 = 302
Solving this quadratic equation you will get the answer.
Answered by Sneha shidid | 08 May, 2018, 02:31: PM
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