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The product of Mary's age in years on her last birthday and her age now in complete months is 1800.
How old was Mary on her last birthday?
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.
Months and Years
Age 14 to 16
ShortChallenge Level 
The product of Mary's age in years on her last birthday and her age now in complete months is 1800.
How old was Mary on her last birthday?
If you liked this problem, here is an NRICH task which challenges you to use similar mathematical ideas.
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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