Glen owned two shops selling jewellery. Shop B earned 40% more money than Shop C on Wednesday. On Thursday, Shop B lost $67 while Shop C earned another $323. In the end, Shop B contributed to 25 of the total earnings of the two shops over the two days operation. How much did Shop B earn over the two days?
| |
Make p the same
(1)x3 = (3) |
Shop B
(1) |
Shop C
(2) |
Make p the same
(2)x2 = (4) |
| Before |
21 u |
7 u |
5 u |
10 u |
| Change |
- 201 |
- 67 |
+ 323 |
+ 646 |
| After |
6 p |
2 p |
3 p |
6 p |
Amount that Glen earned from Shop C on Wednesday in percentage = 100%
Amount that Glen earned from Shop B on Wednesday in percentage
= 100% + 40%
= 140%
140% =
140100 =
75 Fraction of the total earnings that Glen earned from Shop C
= 1 -
25 =
35(3) = (4)
21 u - 201 = 10 u + 646
21 u - 10 u = 201 + 646
11 u = 847
1 u = 847 ÷ 11 = 77
Amount that Glen earned from Shop B over the two days
= 7 u - 67
= 7 x 77 - 67
= 539 - 67
= $472
Answer(s): $472
