Question

70. Ramesh could run a 100-m race in 20 seconds. After training, he can finish the race in
15 seconds. By how much has he improved his speed?
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Answer 1

Answer:

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Answer 2

Hello good morning

Step by step explanation:

When he was amateur ( only knowing to run ) he competed the race in 20 seconds

Let’s take this as point 1


Next he went to a training station and he learnt better tricks and tips to run fast

And this time he completed the race in 15 seconds

Let’s take this as point 2


Now subtract point 1 - point 2

20 seconds - 15 seconds
= 5 seconds

Therefore he increased his speed by 5 seconds



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