Math CentralQuandaries & Queries


Question from William, a parent:

john went hunting and walked at a speed of 4 km/h. one hour later, Diego and his dog went to meet john with a speed of 6 km/h and the dog was running between john and diego until they meet up with a speed of 18 km/h. After Diego meets john, how much distance did the dog run?

Hi William,

How far has John travelled when Diego and his dog start walking?

Diego walks 2 km/h faster than John. How long will it take Diego to catch up to John?

All this time the dog has been running at 18 km/h. How far has he run?


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