Question 933437
{{{Q=3N}}}
.
.
{{{25Q+5N=160}}}
{{{5Q+N=32}}}
Substituting from above,
{{{5(3N)+N=32}}}
{{{15N+N=32}}}
{{{16N=32}}}
{{{N=2}}}
Then,
{{{Q=3(2)}}}
{{{Q=6}}}
Six quarters, two nickels