Three brothers spent a total of $67. Julie spent $6 more than Shiyun and Sabrina spent $10 more than Julie.
- How much money did Shiyun spend?
- How much money did Sabrina spend?
(a)
Amount that Shiyun spent = 1 u
Amount that Julie spent = 1 u + 6
Amount that Sabrina spent = 1 u + 6 + 10 = 1 u + 16
Total amount that they spent
= 1 u + 1 u + 6 + 1 u + 16
= 3 u + 22
3 u + 22 = 67
3 u = 67 - 22
3 u = 45
1 u = 45 ÷ 3 = $15
Amount that Shiyun spent
= 1 u
= 15
(b)
Amount that Sabrina spent
= 1 u + 16
= 15 + 16
= $31
Answer(s): (a) $15; (b) $31
