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Average Speed and Fuel Consumption, Revision Notes

Average Speed and Fuel Consumption

To change a time longer than an hour into a decimal, express the Total time in minutes and divide by 60

2hours 30 mins = 150mins

1 hour 45 mins = 105mins

3 hours 20 mins = 200 mins

3.1

(i) A man travels from Arklow to Blanchardstown, a distance of 90 km. He leaves Arklow at 09:25 and arrives in Blanchardstown at 10:55.

Calculate his average speed for the journey.

Time = 10.55 – 09.25 = 1 hour 30 mins

1 hour 30 mins = 90 mins

Time = 1.5 hours

(ii) He continues from Blanc...

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