1977 AHSME Problems/Problem 3

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Solution

Solution by e_power_pi_times_i

Denote the number of pennies, nickels, dimes, quarters, and half-dollars by $x$. Then $x+5x+10x+25x+50x = 273$, and $x = 3$. The total amount of coins is $5x$, which is $\textbf{(\text{(E)}\ 15)}$.