Eric owned two shops selling electrical appliances. Shop A earned 25% more money than Shop B on Tuesday. On Wednesday, Shop A lost $365 while Shop B earned another $324. In the end, Shop A contributed to 311 of the total earnings of the two shops over the two days operation. How much did Shop A earn over the two days?
| |
Make p the same
(1)x8 = (3) |
A
(1) |
B
(2) |
Make p the same
(2)x3 = (4) |
| Before |
40 u |
5 u |
4 u |
12 u |
| Change |
- 2920 |
- 365 |
+ 324 |
+ 972 |
| After |
24 p |
3 p |
8 p |
24 p |
Amount that Eric earned from Shop B on Tuesday in percentage = 100%
Amount that Eric earned from Shop A on Tuesday in percentage
= 100% + 25%
= 125%
125% =
125100 =
54 Fraction of the total earnings that Eric earned from Shop B
= 1 -
311 =
811(3) = (4)
40 u - 2920 = 12 u + 972
40 u - 12 u = 2920 + 972
28 u = 3892
1 u = 3892 ÷ 28 = 139
Amount that Eric earned from Shop A over the two days
= 5 u - 365
= 5 x 139 - 365
= 695 - 365
= $330
Answer(s): $330
