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Siddhi is practising hard to win the int...

Siddhi is practising hard to win the inter-school marathon One day her instructor measured and recorded the number of her heart beats during her training session in which she did some warm up exercises and then ran. He plotted his recordings in the graph as shown. Select the correct option regarding this.

A

'a' is the point when she started running.

B

'b' is the point when she started warm-up exercises.

C

'c' is the point when she stopped running.

D

'd' is the point when she stopped her warm-up exercises.

Text Solution

Verified by Experts

The correct Answer is:
B
Siddhi started warm up exercises at point .b. as her heart beats increased gradually after that. Then, she started running at point .c. and a steep rise in her heart beats is observed. She continued to run from point .d. to .e. and then slowed down at .e.. Her heart beats gradually become slower after .e..
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