Wendy travelled on the Eurostar train from St Pancras station to the Gare du Nord station. The Eurostar train travelled a distance of 495 km. The journey time was 2 hours 15 minutes. Work out the average speed of the Eurostar train in kilometres per hour.

220 kilometers per hour

Step-by-step explanation:

From the question, we are informed that Wendy travelled on the Eurostar train from St Pancras station to the Gare du Nord station and that the Eurostar train travelled a distance of 495 km and the journey time was 2 hours 15 minutes.

The average speed will be the distance taken divided by the time used. We've to convert 2 hours 15 minutes to hours first. It should be noted that 60minutee make 1 hour, therefore 2 hours, 15 minutes will be:= 2hours × (15/60)

= 2.25 hours

Speed = Distance/Time

Speed = 495/2.25

Speed = 220kilometer per hour

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6x times 4 is 24x and 5 times 4 is 20, so the answer is 24x+20.

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