Three schoolmates spent a total of $94. Irene spent $7 more than Victoria and Gillian spent $14 more than Irene.
- How much money did Victoria spend?
- How much money did Gillian spend?
(a)
Amount that Victoria spent = 1 u
Amount that Irene spent = 1 u + 7
Amount that Gillian spent = 1 u + 7 + 14 = 1 u + 21
Total amount that they spent
= 1 u + 1 u + 7 + 1 u + 21
= 3 u + 28
3 u + 28 = 94
3 u = 94 - 28
3 u = 66
1 u = 66 ÷ 3 = $22
Amount that Victoria spent
= 1 u
= 22
(b)
Amount that Gillian spent
= 1 u + 21
= 22 + 21
= $43
Answer(s): (a) $22; (b) $43
