Xylia and Andy had a total of $139. After Xylia spent
17 of her money and Andy spent $14, the ratio of Xylia's money to Kennenth's money became 1 : 3. How much money had Andy at first?
| |
Xylia |
Andy |
Total |
| Before |
7 u |
18 u + $14 |
$139 |
| Change |
- 1 u |
- $14 |
|
| After |
6 u |
|
|
Comparing Xylia and
Andy in the end |
1x6 =
6 u |
3x6 =
18 u |
|
The amount that Xylia had in the end is repeated. Make the amount that Xylia had in the end the same. LCM of 6 and 1 is 6.
Total amount that Xylia and Andy had at first
= 7 u + 18 u + 14
= 25 u + 14
25 u + 14 = 139
25 u = 139 - 14
25 u = 125
1 u = 125 ÷ 25 = 5
Amount that Andy had at first
= 18 u + 14
= 18 x 5 + 14
= 90 + 14
= $104
Answer(s): $104
