Lynn has $12 more than Mary. Fiona has seven times as much money as Lynn. They have a total of $168.
- How much money does Lynn have?
- How much money does Fiona have?
(a)
Amount that Lynn has = 1 u
Amount that Mary has = 1 u - 12
Amount that Fiona has = 7 u
Total amount that they has
= 1 u + 1 u - 12 + 7 u
= 9 u - 12
9 u - 12 = 168
9 u = 168 + 12
9 u = 180
1 u = 180 ÷ 9 = 20
(b)
Amount that Fiona has
= 7 u
= 7 x 20
= $140
Answer(s): (a) $20; (b) $140