Andy and Luis earned the same amount each month. Andy saved
35 of his pay and Luis saved
27 of his pay. Andy saved $80 more than Luis in a month. How much did Luis save in a month?
|
Andy |
Luis |
Before |
5x7 = 35 u |
7x5 = 35 u |
Change |
- 3x7 = - 21 u |
- 2x5 = - 10 u |
After |
2x7 = 14 u |
5x5 = 25 u |
The amount that Andy and Luis each earned in a month is the same. Make the amount the same. LCM of 5 and 7 is 35.
Amount that Andy saved more than Luis
= 21 u - 10 u
= 11 u
11 u = 80
1 u = 80 ÷ 11 = 80
Amount that Luis saved in a month
= 10 u
= 10 x 80
= $800
Answer(s): $800