1. The product of two odd numbers is 143.
What are they?
2. The difference between two square numbers is 8.
What are they?
3. The sum of three prime numbers is 15.
What are they?
4. The ratio of two even numbers is 5:3.
What are they?
Topics: Starter  Arithmetic  Number  Puzzles  Ratio
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1. 1 and 143 or 11 and 13 (and their negatives).
2. 1 and 9. Could there be any other solutions?
3. 2, 2 and 11 or 3, 5 and 7 or 5, 5 and 5.
4. 10 and 6 or 20 and 12 or 30 and 18 or ...
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