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Kareem runs 2460 metres in 8 minutes - OCR - GCSE Maths - Question 13 - 2023 - Paper 1

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Question 13

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Kareem runs 2460 metres in 8 minutes. (a) Calculate his average speed in metres per minute. (b) Kareem says This means I can run 6150 metres in 20 minutes. Write d... show full transcript

Worked Solution & Example Answer:Kareem runs 2460 metres in 8 minutes - OCR - GCSE Maths - Question 13 - 2023 - Paper 1

Step 1

Calculate his average speed in metres per minute.

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Answer

To find Kareem's average speed, we use the formula:

ext{Average Speed} = rac{ ext{Total Distance}}{ ext{Total Time}}

Here, the total distance is 2460 metres and the total time is 8 minutes. Therefore:

ext{Average Speed} = rac{2460 ext{ metres}}{8 ext{ minutes}} = 307.5 ext{ m/min}

Kareem's average speed is 307.5 metres per minute.

Step 2

Write down one assumption Kareem has made.

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Answer

One assumption Kareem has made is that his speed remains consistent over the entire duration of 20 minutes. This means he assumes there are no factors that would cause changes in his speed, such as fatigue or changes in terrain.

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