Question

A racer covers a distance of 400 m as follows. He first increases his speed for first quarter of the distance and covers this distance in 10 s. After that he runs at the speed developed. Calculate the total time taken by the racer to cover the dis tance

Answer 1

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I am not able to get your question

is the information mentioned complete

Answer 2

Answer:

I don't understand ✔✔✔✔✔✔