Peter owned two shops selling electrical appliances. Shop E earned 25% more money than Shop F on Thursday. On Friday, Shop E lost $308 while Shop F earned another $392. In the end, Shop E contributed to 311 of the total earnings of the two shops over the two days operation. How much did Shop E earn over the two days?
| |
Make p the same
(1)x8 = (3) |
E
(1) |
F
(2) |
Make p the same
(2)x3 = (4) |
| Before |
40 u |
5 u |
4 u |
12 u |
| Change |
- 2464 |
- 308 |
+ 392 |
+ 1176 |
| After |
24 p |
3 p |
8 p |
24 p |
Amount that Peter earned from Shop F on Thursday in percentage = 100%
Amount that Peter earned from Shop E on Thursday in percentage
= 100% + 25%
= 125%
125% =
125100 =
54 Fraction of the total earnings that Peter earned from Shop F
= 1 -
311 =
811(3) = (4)
40 u - 2464 = 12 u + 1176
40 u - 12 u = 2464 + 1176
28 u = 3640
1 u = 3640 ÷ 28 = 130
Amount that Peter earned from Shop E over the two days
= 5 u - 308
= 5 x 130 - 308
= 650 - 308
= $342
Answer(s): $342
