Different Coins
February 24th, 2007
If Sarah has 10cents How Many different combinations of coins could she have?
?
10
5 5
2 2 2 2 2
2 2 2 2 1 1
2 2 2 1 1 1 1
2 2 1 1 1 1 1 1
2 1 1 1 1 1 1 1 1
5 1 1 1 1 1
5 2 1 1 1
5 2 2 1
1 1 1 1 1 1 1 1 1 1
11 ways – the currency was NOT stated, therefore currencies that use ‘cents’ can include a ’2 cent’ coin, hence why 11 ways is CORRECT.
Weighing different silver coins and bullion
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