Lynn had
38 as much money as Usha. Lynn had $40 less than Usha. Lynn spent some money to buy a birthday present for her best friend. In the end, she had
14 as much money as Usha. How much did Lynn spend on the birthday present?
| |
Lynn |
Usha |
| Before |
3 u |
8 u |
| Change |
- ? |
|
| After |
1 p |
4 p |
Amount that Lynn had less than Usha
= 8 u - 3 u
= 5 u
5 u = 40
1 u = 40 ÷ 5 = 8
Amount that Lynn had at first
= 3 u
= 3 x 8
= $24
Amount that Usha had
= 8 u
= 8 x 8
= $64
The amount that Usha had at first and in the end remains the same.
8 u = 4 p
4 p = 64
1 p = 64 ÷ 4 = 16
Amount that Lynn had in the end
= 1 p
= $16
Amount that Lynn spent on the birthday present
= 24 - 16
= $8
Answer(s): $8
