Oscar and Perry earned the same amount each month. Oscar saved
34 of his pay and Perry saved
37 of his pay. Oscar saved $170 more than Perry in a month. How much did Perry save in a month?
|
Oscar |
Perry |
Before |
4x7 = 28 u |
7x4 = 28 u |
Change |
- 3x7 = - 21 u |
- 3x4 = - 12 u |
After |
1x7 = 7 u |
4x4 = 16 u |
The amount that Oscar and Perry each earned in a month is the same. Make the amount the same. LCM of 4 and 7 is 28.
Amount that Oscar saved more than Perry
= 21 u - 12 u
= 9 u
9 u = 170
1 u = 170 ÷ 9 = 170
Amount that Perry saved in a month
= 12 u
= 12 x 170
= $2040
Answer(s): $2040