Three colleagues spent a total of $83. Nicole spent $6 more than Betty and Emma spent $11 more than Nicole.
- How much money did Betty spend?
- How much money did Emma spend?
(a)
Amount that Betty spent = 1 u
Amount that Nicole spent = 1 u + 6
Amount that Emma spent = 1 u + 6 + 11 = 1 u + 17
Total amount that they spent
= 1 u + 1 u + 6 + 1 u + 17
= 3 u + 23
3 u + 23 = 83
3 u = 83 - 23
3 u = 60
1 u = 60 ÷ 3 = $20
Amount that Betty spent
= 1 u
= 20
(b)
Amount that Emma spent
= 1 u + 17
= 20 + 17
= $37
Answer(s): (a) $20; (b) $37
