Anna had
47 as much money as Vanessa. Anna had $48 less than Vanessa. Anna spent some money to buy a birthday present for her cousin. In the end, she had
18 as much money as Vanessa. How much did Anna spend on the birthday present?
| |
Anna |
Vanessa |
| Before |
4 u |
7 u |
| Change |
- ? |
|
| After |
1 p |
8 p |
Amount that Anna had less than Vanessa
= 7 u - 4 u
= 3 u
3 u = 48
1 u = 48 ÷ 3 = 16
Amount that Anna had at first
= 4 u
= 4 x 16
= $64
Amount that Vanessa had
= 7 u
= 7 x 16
= $112
The amount that Vanessa had at first and in the end remains the same.
7 u = 8 p
8 p = 112
1 p = 112 ÷ 8 = 14
Amount that Anna had in the end
= 1 p
= $14
Amount that Anna spent on the birthday present
= 64 - 14
= $50
Answer(s): $50
