Xuan has $7 more than Zoe. Raeann has thrice as much money as Xuan. They have a total of $113.
- How much money does Xuan have?
- How much money does Raeann have?
(a)
Amount that Xuan has = 1 u
Amount that Zoe has = 1 u - 7
Amount that Raeann has = 3 u
Total amount that they has
= 1 u + 1 u - 7 + 3 u
= 5 u - 7
5 u - 7 = 113
5 u = 113 + 7
5 u = 120
1 u = 120 ÷ 5 = 24
(b)
Amount that Raeann has
= 3 u
= 3 x 24
= $72
Answer(s): (a) $24; (b) $72