A collection of 25 coins is made up of nickels and quarters. If there are 3 more nickels than quarters, how much money is the collection of coins worth?

Answer 1

N is number of nickels = Q - 3

Q is number of quarters

N + Q = 25

Q - 3 + Q = 25

Q = 11

N = 14

N*0.05 is value of N nickels

Q*0.25 is value of Q quarters

Value of coins is 14*0.05 + 11*0.25 = $3.45