In a coin purse, there are 3 more nickels than quarters. If there is $3.75 in the purse, how many coins of each type are there in the purse?

Answer 1

q+3=n

.25q+.05n=3.75

.25q+.05(q+3)=3.75

.25q+.05q+0.15=3.75

.30q+0.15=3.75

.30q=3.60

q=12

There are 12 quarter and 15 nickels.