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# Flying Down Under

**Answer: **7:30 pm on Wednesday

**Using a table**

**Using the total change in time**

The clock time in Melbourne is 11 hours later than in London, and he spent 11 hours on the plane.

So Fred arrives a total of 32 hours (one complete day and 8 hours) ahead of the clock time in London when he left. So he arrived at 7:30pm on Wednesday.

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Age 11 to 14

ShortChallenge Level

- Problem
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The clock time in Melbourne is 11 hours later than in London, and he spent 11 hours on the plane.

So Fred arrives a total of 32 hours (one complete day and 8 hours) ahead of the clock time in London when he left. So he arrived at 7:30pm on Wednesday.

This problem is taken from the UKMT Mathematical Challenges.

You can find more short problems, arranged by curriculum topic, in our short problems collection.

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If it takes four men one day to build a wall, how long does it take 60,000 men to build a similar wall?

Which segment on a digital clock is lit most each day? Which segment is lit least? Does it make any difference if it is set to 12 hours or 24 hours?