At first, Sean had $91 and John had $51. Each of them bought a blouse at the same price. Sean now has three times as much money as John. How much did each of them pay for the blouse?
| |
Sean |
John |
Difference |
| Before |
$91 |
$51 |
$40 |
| Change |
- ? |
- ? |
|
| After |
3 u |
1 u |
2 u |
Since Sean and John each bought a blouse at the same price, the difference in the amounts each had remains the same.
Difference in the amounts between Sean and John
= 3 u - 1 u
= 2 u
2 u = 91 - 51
2 u = 40
1 u = 40 ÷ 2 = 20
Amount that each of them paid for the blouse
= 51 - 20
= $31
Answer(s): $31
