Three brothers spent a total of $66. Gabby spent $7 more than Gem and Yen spent $13 more than Gabby.
- How much money did Gem spend?
- How much money did Yen spend?
(a)
Amount that Gem spent = 1 u
Amount that Gabby spent = 1 u + 7
Amount that Yen spent = 1 u + 7 + 13 = 1 u + 20
Total amount that they spent
= 1 u + 1 u + 7 + 1 u + 20
= 3 u + 27
3 u + 27 = 66
3 u = 66 - 27
3 u = 39
1 u = 39 ÷ 3 = $13
Amount that Gem spent
= 1 u
= 13
(b)
Amount that Yen spent
= 1 u + 20
= 13 + 20
= $33
Answer(s): (a) $13; (b) $33
