1. The product of two odd numbers is 285.
What are they?
2. The difference between two square numbers is 12.
What are they?
3. The sum of three prime numbers is 19.
What are they?
4. The ratio of two even numbers is 9:7.
What are they?
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Topics: Starter  Arithmetic  Number  Puzzles  Ratio
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1. 1 and 285 or 3 and 95 or 5 and 57 or 15 and 19 (and their negatives).
2. 4 and 16. Could there be any other solutions?
3. 3, 3 and 13 or 3, 5 and 11 or 5, 7 and 7.
4. 18 and 14 or 36 and 28 or 54 and 42 or ...
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