Question 1028746: Henry has 30 coins. He has 1 fewer pennies than dimes. He has 2 fewer nickels than dimes. How many dimes does Henry have? Answer by ikleyn(52914) (Show Source):
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Henry has 30 coins. He has 1 fewer pennies than dimes. He has 2 fewer nickels than dimes. How many dimes does Henry have?
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Answer. 9 nickels, 10 pennies and 11 dimes.
Solution
The numbers "n", "p" and "d" are three consecutive (positive) integers, according to the condition.
If so, the middle of the free numbers is of the their sum.
