Oliver owned two shops selling computers. Shop B earned 40% more money than Shop C on Tuesday. On Wednesday, Shop B lost $202 while Shop C earned another $70. In the end, Shop B contributed to 59 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)x4 = (3) |
Shop B
(1) |
Shop C
(2) |
Make p the same
(2)x5 = (4) |
| Before |
28 u |
7 u |
5 u |
25 u |
| Change |
- 808 |
- 202 |
+ 70 |
+ 350 |
| After |
20 p |
5 p |
4 p |
20 p |
Amount that Oliver earned from Shop C on Tuesday in percentage = 100%
Amount that Oliver earned from Shop B on Tuesday in percentage
= 100% + 40%
= 140%
140% =
140100 =
75 Fraction of the total earnings that Oliver earned from Shop C
= 1 -
59 =
49(3) = (4)
28 u - 808 = 25 u + 350
28 u - 25 u = 808 + 350
3 u = 1158
1 u = 1158 ÷ 3 = 386
Amount that Oliver earned from Shop B over the two days
= 7 u - 202
= 7 x 386 - 202
= 2702 - 202
= $2500
Answer(s): $2500
