1977 AHSME Problems/Problem 3
A man has $2.73 in pennies, nickels, dimes, quarters and half dollars. If he has an equal number of coins of each kind, then the total number of coins he has is
Solution by e_power_pi_times_i
Denote the number of pennies, nickels, dimes, quarters, and half-dollars by . Then , and . The total amount of coins is , which is .