Yoko and Kylie had equal amount of money. Each day, Yoko spent $11 and Kylie spent $14. When Yoko had $105 left, Kylie had
25 as much money left as Yoko. How much money did the two girls have at first?
| |
Yoko |
Kylie |
| Before |
11 u + 105 |
14 u + 42 |
| Change |
- 11 u |
- 14 u |
| After |
$105 |
$42 |
Amount that Kylie had left
=
25 x 105
= $42
The amount that Yoko and Kylie had at first is the same.
14 u + 42 = 11 u + 105
14 u - 11 u = 105 - 42
3 u = 63
1 u = 63 ÷ 3 = 21
Amount that Yoko had at first
= 11 u + 105
= 11 x 21 + 105
= 231 + 105
= $336
Total amount that both girls had at first
= 2 x 336
= $672
Answer(s): $672
