Nora and Luis had the same amount of savings at first. Then Nora spent
17 of her savings and Luis spent
23 of his savings. If Nora spent $1815 less than Luis, how much did each of them have at first?
|
Nora |
Luis |
Before |
7x3 = 21 u |
3x7 = 21 u |
Change |
1x3 = - 3 u |
2x7 = - 14 u |
After |
18 u |
7 u |
The amount that Nora and Luis had at first is the same. Make the amount that Nora and Luis each had the same. LCM of 7 and 3 is 21.
Amount that Nora spent less than Luis
= 14 u - 3 u
= 11 u
11 u = 1815
1 u = 1815 ÷ 11 = 165
Amount that each of them had at first
= 21 u
= 21 x 165
= $3465
Answer(s): $3465