Mary spent $300 on one computer. Of the remaining salary, she spent
17 on a food processor. She had
29 of the original total left. How much was her salary?
| Computer |
Food Processor |
Left |
Remaining total |
Total
|
| $300 |
1x1 |
6x1 |
7x1 |
|
| |
|
2x3 |
|
9x3 |
| 20 u |
1 u |
6 u |
|
27 u |
Fraction of the remaining salary left
= 1 -
17 =
67 67 of the remaining salary =
29 of the total salary
6x17x1 of the remaining salary =
2x39x3 of the total salary
67 of the remaining salary =
627 of the total salary
Total salary = 27 u
Amount left = 6 u
Amount spent on the food processor = 7 u - 6 u = 1 u
Amount spent on the computer = 27 u - 6 u - 1 u = 20 u
20 u = 300
1 u = 300 ÷ 20 = 15
Her salary
= 27 u
= 27 x 15
= $405
Answer(s): $405
