Displaying Data, SM-Bank 033

The graph below shows the times Kerry spent, in minutes, performing different exercises at the gym over the last fortnight.

How many minutes in total did Kerry spend cycling and walking? (1 mark)

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What was the average time per day that Kerry spent exercising over the last fortnight? Give your answer correct to the nearest minute. (2 marks)

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How many more minutes did Kerry spend doing HIIT than rowing? (1 mark)

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Show Answers Only

a. \(\text{150 minutes}\)

b. \(28\text{ minutes (nearest minute)}\)

c. \(35\text{ minutes}\)

Show Worked Solution

a.	\(\text{Cycling and walking}\)	\(=90+60\)
		\(=150\ \text{minutes}\)

b.	\(\text{Average exercise minutes/day}\)	\(=\dfrac{60+45+90+40+75+80}{14}\)
		\(=\dfrac{390}{14}\)
		\(=27.857\dots\)
		\(=28\text{ minutes (nearest minute)}\)

c.	\(\text{Difference}\)	\(=75-40\)
		\(=35\ \text{minutes}\)