Abi, Opal and Kimberly went shopping together. They brought a total of $1341 with them. Abi spent 25% of her money. Opal spent $123 and Kimberly spent twice as much money as Abi. In the end, they had $687 left. How much money did Opal and Kimberly have altogether in the end?
| |
Abi |
Opal |
Kimberly |
Total |
| Before |
4 u |
|
|
1341 |
| Change |
- 1 u |
- 123 |
- 2 u |
- 654 |
| After |
3 u |
? |
687 |
25% =
25100 =
14 Abi spent: Abi's total = 1 : 4
Amount that Kimberly spent
= 2 x 1 u
= 2 u
Amount that the three girls spent
= 1 u + 2 u + 123
= 3 u + 123
Amount that the three girls spent
= 1341 - 687
= $654
3 u + 123 = 654
3 u = 654 - 123
3 u = 531
1 u = 531 ÷ 3 = 177
Amount that Opal and Kimberly had in the end
= 687 - 3 u
= 687 - 3 x 177
= 687 - 531
= $156
Answer(s): $156
