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Oh for the Mathematics of Yesteryear
A garrison of 600 men has just enough bread ... but, with the news that the enemy was planning an attack... How many ounces of bread a day must each man in the garrison be allowed, to hold out 45 days against the siege of the enemy?
History of Money
If you would like a new CD you would probably go into a shop and buy one using coins or notes. (You might need to do a bit of saving first!) However, this way of paying for the things you want did not always exist. Find out more ...
Age 11 to 14
Challenge Level
We have exactly $100$ coins. There are five different values of coins.
We have decided to buy a piece of computer software for $39.75$. We have the correct money, not a penny more, not a penny less!
Can you discover what the five different types of coins are worth and how many of each we have saved?
NRICH is part of the family of activities in the Millennium Mathematics Project.