Xandra had
49 as much money as Yoko. Xandra had $35 less than Yoko. Xandra spent some money to buy a birthday present for her father. In the end, she had
13 as much money as Yoko. How much did Xandra spend on the birthday present?
| |
Xandra |
Yoko |
| Before |
4 u |
9 u |
| Change |
- ? |
|
| After |
1 p |
3 p |
Amount that Xandra had less than Yoko
= 9 u - 4 u
= 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Amount that Xandra had at first
= 4 u
= 4 x 7
= $28
Amount that Yoko had
= 9 u
= 9 x 7
= $63
The amount that Yoko had at first and in the end remains the same.
9 u = 3 p
3 p = 63
1 p = 63 ÷ 3 = 21
Amount that Xandra had in the end
= 1 p
= $21
Amount that Xandra spent on the birthday present
= 28 - 21
= $7
Answer(s): $7
