Problema Solution
A coin bank for decoration contained 1570. There were twice as many 5 php coins as 10 php coins and 14 less 1 php coins as 5 php coins. How many of each kind were there?
Answer provided by our tutors
Let
x = the number of 10 php coins
2x = the number of 5 php coins
2x - 14 = the number of 1 php coins
10x + 5*2x + (2x - 14) = 1570
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click here to see the equation solved for x
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x = 72
There were 72 10 php coins, 2*72 = 144 5 php coins and 144 - 14 = 130 1 php coins.