Dylan bought a total of 12 chocolate bars and lollipops. Each chocolate bar cost 50¢. Each lollipop cost 70¢. He paid a total of $7.20. How many lollipops did he buy?
Number of
chocolate bars |
Amount paid
for the chocolate bars |
Number of
lollipops |
Amount paid
for the chocolate bars |
Total paid |
| 12 |
12 x 50
= 600¢ |
0 |
0 |
600¢ |
| 11 |
11 x 50
= 550¢ |
1 |
1 x 70
= 70¢ |
620¢ |
| 6 |
6 x 50
= 300¢ |
6 |
6 x 70
= 420¢ |
720¢ |
$1 = 100¢
$7.20 = 720¢
Amount paid if all were chocolate bars
= 12 x 50
= 600¢
Big difference between the amount paid for the chocolate bars and the lollipops
= 720 - 600
= 120¢
Small difference between the amount paid for the one chocolate bar and one lollipop
= 70 - 50
= 20¢
Number of lollipops
= 120 ÷ 20
= 6
Answer(s): 6
