Jaslyn and Justin had a total of $97. After Jaslyn spent
38 of her money and Justin spent $5, the ratio of Jaslyn's money to Kennenth's money became 1 : 3. How much money had Justin at first?
| |
Jaslyn |
Justin |
Total |
| Before |
8 u |
15 u + $5 |
$97 |
| Change |
- 3 u |
- $5 |
|
| After |
5 u |
|
|
Comparing Jaslyn and
Justin in the end |
1x5 =
5 u |
3x5 =
15 u |
|
The amount that Jaslyn had in the end is repeated. Make the amount that Jaslyn had in the end the same. LCM of 5 and 1 is 5.
Total amount that Jaslyn and Justin had at first
= 8 u + 15 u + 5
= 23 u + 5
23 u + 5 = 97
23 u = 97 - 5
23 u = 92
1 u = 92 ÷ 23 = 4
Amount that Justin had at first
= 15 u + 5
= 15 x 4 + 5
= 60 + 5
= $65
Answer(s): $65
