When she was in year 8 sally could run 1600 metres in 6 minutes and 40 seconds.Now she is in year 11 she could run 1600 metres in 5 minutes and 52 seconds
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Answer:12%
Step-by-step explanation:
Convert the minutes into seconds
6 minutes and 40 seconds= 400 seconds
5 minutes and 52 seconds= 352 seconds
Find the difference between the original and the new number
400-352=48
48/400x100=12%
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