Lukas has a collection of coins that consists of quarters, dimes, and nickels. The ratio of quarters to dimes to nickels is 4:3:5. If Lukas has a total of 60 coins, how many of each type of coin does he have?
2 answers
Lukas has 24 quarters, 18 dimes, and 18 nickels.
as usual, the canned answer is wrong .....
quarters --- 4x
dimes ----- 3x
nickels --- 5x , notice 4x : 3x : 5x = 4 : 3 : 5
4x + 3x + 5x = 60
12x = 60
x = 5
so 20 quarters, 15 dimes and 25 nickels
which is 20:15:25 = 4:3:5
the "digital tutor" has a ratio of 24:18:18 = 4:3:3
quarters --- 4x
dimes ----- 3x
nickels --- 5x , notice 4x : 3x : 5x = 4 : 3 : 5
4x + 3x + 5x = 60
12x = 60
x = 5
so 20 quarters, 15 dimes and 25 nickels
which is 20:15:25 = 4:3:5
the "digital tutor" has a ratio of 24:18:18 = 4:3:3
2 answers