Question

Ramesh could Run 800m race in 20 seconds after training he can finish the race in 15 seconds by for how much has he improved his speed​

Answer 1

ramesh speed before training = d/t

= 800/20

= 40m/s

ramesh soeed after training = 800/15

= 53.3m/s

so his speed increased by =53.3-40

13.3
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