Jack has $3.20 in nickels, dimes, and quarters. If there are equal number of nickels as dimes as quarters, how many of each coin are there?
Let 'n' be the number of nickels and 'd' be the number of dimes and 'q' be the number of quarters
n = d = q
5n + 10d + 25q = 320
5n + 10n + 25n = 320
40n = 320
n = 8
Therefore n = 8, d = 8 and q = 8
Directions: Solve the following word problems.