Here's a question that I'm interested to know how people will answer:
I'm travelling by car. If I drive for half the journey at 60mph and half the journey at 40mph, what will be my average speed for the whole journey? How did you work it out?
Here's a question that I'm interested to know how people will answer:
I'm travelling by car. If I drive for half the journey at 60mph and half the journey at 40mph, what will be my average speed for the whole journey? How did you work it out?
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