Three brothers spent a total of $72. Betty spent $8 more than Tiffany and Gem spent $14 more than Betty.
- How much money did Tiffany spend?
- How much money did Gem spend?
(a)
Amount that Tiffany spent = 1 u
Amount that Betty spent = 1 u + 8
Amount that Gem spent = 1 u + 8 + 14 = 1 u + 22
Total amount that they spent
= 1 u + 1 u + 8 + 1 u + 22
= 3 u + 30
3 u + 30 = 72
3 u = 72 - 30
3 u = 42
1 u = 42 ÷ 3 = $14
Amount that Tiffany spent
= 1 u
= 14
(b)
Amount that Gem spent
= 1 u + 22
= 14 + 22
= $36
Answer(s): (a) $14; (b) $36
