# Maths

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1.Humans breathe about 15 breathe in a minute.The average breath at rest contains 0.76 liter of air.About how many liters of air will you breathe while at rest for 25 minutes?
2.Greta ran the 400-m dash in 49.07 s.If Greta ran at a constant rate,how many meters did she run in one second?

• Maths -

285 liters of air.

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