Jean, Cindy and Diana went shopping together. They brought a total of $1224 with them. Jean spent 20% of her money. Cindy spent $274 and Diana spent thrice as much money as Jean. In the end, they had $630 left. How much money did Cindy and Diana have altogether in the end?
| |
Jean |
Cindy |
Diana |
Total |
| Before |
5 u |
|
|
1224 |
| Change |
- 1 u |
- 274 |
- 3 u |
- 594 |
| After |
4 u |
? |
630 |
20% =
20100 =
15 Jean spent: Jean's total = 1 : 5
Amount that Diana spent
= 3 x 1 u
= 3 u
Amount that the three girls spent
= 1 u + 3 u + 274
= 4 u + 274
Amount that the three girls spent
= 1224 - 630
= $594
4 u + 274 = 594
4 u = 594 - 274
4 u = 320
1 u = 320 ÷ 4 = 80
Amount that Cindy and Diana had in the end
= 630 - 4 u
= 630 - 4 x 80
= 630 - 320
= $310
Answer(s): $310
