Question 738443: Can you show 10 cent with 3 coins? Explain how you know
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! No you cannot. Here are all the possible ways to have 3 coins (each coin is less than 10 cents)
penny, penny, penny = 1+1+1 = 3 cents
penny, penny, nickel = 1+1+5 = 7 cents
penny, nickel, nickel = 1+5+5 = 11 cents...which is NOT 10 cents since it's over 10 cents
nickel, nickel, nickel = 5+5+5 = 15 cents...which is NOT 10 cents since it's over 10 cents
So this shows us that it's not possible to make 10 cents with exactly 3 coins.
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