Shiyun has $10 more than Julie. Mary has five times as much money as Shiyun. They have a total of $123.
- How much money does Shiyun have?
- How much money does Mary have?
(a)
Amount that Shiyun has = 1 u
Amount that Julie has = 1 u - 10
Amount that Mary has = 5 u
Total amount that they has
= 1 u + 1 u - 10 + 5 u
= 7 u - 10
7 u - 10 = 123
7 u = 123 + 10
7 u = 133
1 u = 133 ÷ 7 = 19
(b)
Amount that Mary has
= 5 u
= 5 x 19
= $95
Answer(s): (a) $19; (b) $95