Lucy and Neave had a total of $52. After Lucy spent
47 of her money and Neave spent $13, the ratio of Lucy's money to Kennenth's money became 1 : 2. How much money had Neave at first?
| |
Lucy |
Neave |
Total |
| Before |
7 u |
6 u + $13 |
$52 |
| Change |
- 4 u |
- $13 |
|
| After |
3 u |
|
|
Comparing Lucy and
Neave in the end |
1x3 =
3 u |
2x3 =
6 u |
|
The amount that Lucy had in the end is repeated. Make the amount that Lucy had in the end the same. LCM of 3 and 1 is 3.
Total amount that Lucy and Neave had at first
= 7 u + 6 u + 13
= 13 u + 13
13 u + 13 = 52
13 u = 52 - 13
13 u = 39
1 u = 39 ÷ 13 = 3
Amount that Neave had at first
= 6 u + 13
= 6 x 3 + 13
= 18 + 13
= $31
Answer(s): $31
