Mathematics, 03.06.2020 20:59 am2016832

When she was in year 8,Sarah could run 800 meters in 3 minutes and 20 seconds. Three years later, when she was in year 11, she could run 800 meters in 2 minutes and 40 seconds.

Find the percentage improvement in her time and show your working out.

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When she was in year 8,Sarah could run 800 meters in 3 minutes and 20 seconds. Three years later, w...

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