Question 831956: Kate saved some money. she saved 20 cent and 50 cent only. she had the same number 0f 20 cent and 50 cent coins. there were less than 12 coins but more than 5 altogether. how much could she have saved?
Answer by JulietG(1812)   (Show Source):
You can put this solution on YOUR website! 20 cent coins? Odd question.
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If there are more than 5 coins, there are at least 6.
If there are less than 12 coins, there are no more than 11.
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Obviously, the greater number of .50 pieces, the higher the total value.
Let's look at the possibilities:
11 .50 pieces = 5.50
10 .50 pieces = 5.00
10 .50 pieces + 1 .20 = 5.20
9 .50 pieces = 4.50
9 .50 pieces + 2 .20 = 4.90
9 .50 pieces + 1 .20 = 4.70
8 .50 pieces = 4.00
7 .50 pieces = 3.50
6 .50 pieces = 3.00
and so on...
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