Grass clippings are found to have an average length of 38cm, Ask an Expert

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Grass clippings are found to have an average length of 3.8cm when a lawn is moved 10 days after the previous mowing. What is the average speed of growth of this grass in cm/days?

a) 38 cm/days

b)0.38 cm/days

c)10 cm/days

d)3.80 cm/days

e)2.63 cm/days

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