Tina and Riordan had the same amount of savings at first. Then Tina spent
15 of her savings and Riordan spent
23 of his savings. If Tina spent $1344 less than Riordan, how much did each of them have at first?
| |
Tina |
Riordan |
| Before |
5x3 =
15 u |
3x5 =
15 u |
| Change |
1x3 =
- 3 u |
2x5 =
- 10 u |
| After |
12 u |
5 u |
The amount that Tina and Riordan had at first is the same. Make the amount that Tina and Riordan each had the same. LCM of 5 and 3 is 15.
Amount that Tina spent less than Riordan
= 10 u - 3 u
= 7 u
7 u = 1344
1 u = 1344 ÷ 7 = 192
Amount that each of them had at first
= 15 u
= 15 x 192
= $2880
Answer(s): $2880
