Ian and Oliver had $187 altogether. After Ian spent
14 of his money and Oliver spent
23 of his money, Ian was left with twice as much money as Oliver. How much money did Oliver have at first?
| |
Ian |
Oliver |
Total |
| Before |
4x2 =
8 u |
3x3 =
9 u |
$187 |
| Change |
- 1x2 =
- 2 u |
- 2x3 =
- 6 u |
|
| After |
3x2 =
6 u |
1x3 =
3 u |
|
Comparing Ian
and Oliver in the end |
2x3 =
6 u |
1x3 =
3 u |
|
The amount that Ian had in the end is repeated. Make the amount that Ian had in the end the same. LCM of 3 and 2 is 6.
Total amount that Ian and Oliver had at first
= 8 u + 9 u
= 17 u
17 u = 187
1 u = 187 ÷ 17 = 11
Amount that Oliver had at first
= 9 u
= 9 x 11
= $99
Answer(s): $99
