posted by student12 .
A coin bank contains twice as many nickels as quarters, three times as many pennies as quarters, and no dimes. If the bank contains $7.60 how many of each coin does it contain ?
25q + 5(2q) + 1(3q) = 760
38q = 760
q = 20
so, 20 quarters, 40 nickels, 60 pennies