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Puzzle 597 


My BrainBashers calculator is low on batteries again, and the following multiplication is wrong. Can you correct it?

Each of the numbers has the correct digits, but they have been mixed up.

Luckily, the solution is correct, which makes the task a little easier.
    2471
    3725 x
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22084429

Puzzle Copyright © Kevin Stone

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Puzzle 598 


What are the next three letters in this sequence:
HDD
TMRUTC
TCSO
TMRD

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Puzzle 599 


Kevin's mother has three children.

The first was called Alpha, the second was called Beta.

What was the name of the third?

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Puzzle 600 


After visiting one of my very old relatives, I travelled home in their old jalopy. The car was old and battered, it had a leak from the petrol tank, and I was stuck in second gear.

This meant that I could only travel along at a steady 30 miles per hour and managed a paltry 20 miles per gallon of fuel.

At the start of the journey, I had placed exactly 10 gallons of fuel into the tank. I knew though, that the fuel tank lost fuel at the rate of half a gallon per hour.

Just as I arrived home, the car stopped because it had run out of fuel and I had only just made it.

How far was it from my relative's house to my home?

Puzzle Copyright © Kevin Stone

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