Simon owned two shops selling electrical appliances. Shop G earned 25% more money than Shop H on Saturday. On Sunday, Shop G lost $120 while Shop H earned another $261. In the end, Shop G contributed to 512 of the total earnings of the two shops over the two days operation. How much did Shop G earn over the two days?
| |
Make p the same
(1)x7 = (3) |
G
(1) |
H
(2) |
Make p the same
(2)x5 = (4) |
| Before |
35 u |
5 u |
4 u |
20 u |
| Change |
- 840 |
- 120 |
+ 261 |
+ 1305 |
| After |
35 p |
5 p |
7 p |
35 p |
Amount that Simon earned from Shop H on Saturday in percentage = 100%
Amount that Simon earned from Shop G on Saturday in percentage
= 100% + 25%
= 125%
125% =
125100 =
54 Fraction of the total earnings that Simon earned from Shop H
= 1 -
512 =
712(3) = (4)
35 u - 840 = 20 u + 1305
35 u - 20 u = 840 + 1305
15 u = 2145
1 u = 2145 ÷ 15 = 143
Amount that Simon earned from Shop G over the two days
= 5 u - 120
= 5 x 143 - 120
= 715 - 120
= $595
Answer(s): $595
