Question

ramesh could run a 100m race in 20 second after training he can finish the race in 15 second. by how much time he has improve his speed​

Answer 1

Answer:

5 seconds

Step-by-step explanation:

Time taken before training = 20 seconds

Time taken after training = 15 seconds

Speed improved = 20 - 15 = 5 seconds

Thus, answer = 5 seconds

Answer 2

$\underline{\boxed{\bold\red{Question}}}$

Ramesh could run a 100m race in 20 second after training he can finish the race in 15 second. by how much time he has improve his speed

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$\underline{\boxed{\bold\blue{Answer}}}$

$\huge\green{1.66m/s}$

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$\underline{\boxed{\bold\orange{Given}}}$

⋆Distance of Ramesh race = 100m

⋆His speed before training= 20s

⋆His speed after training= 15s

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$\underline{\boxed{\bold\pink{Explanation}}}$

$Ramesh \: speed \: before \: training=\frac{d}{t}$

$\frac{100}{2}$

⇝5m/s

$Ramesh \: speed \: after\: training=\frac{d}{t}$

$\frac{100}{15}$

⇝6.66m/s

So ,his speed increased by

⇝6.66-5

⇝1.66m/s

[Hope this helps you.../]