Abi spent
16 of her salary on a microwave oven and
34 of the remainder on a lamp. If she saved the remaining $150, how much was her salary?
Fraction of the salary spent on the microwave oven =
16 Fraction of the salary on the remainder
= 1 -
16 =
56 Fraction of the remainder on savings
= 1 -
34 =
14
| Microwave Oven |
Remainder |
Total |
| 1x4 |
5x4 |
6x4 |
| |
Lamp |
Savings |
|
| |
3x5 |
1x5 |
|
| 4 u |
15 u |
5 u |
24 u |
The remainder and the total amount on the lamp and the savings are the same. Make the remainder and the total amount on the lamp and the savings the same. LCM of 5 and 4 is 20.
Total salary = 24 u
Amount spent of the microwave oven = 4 u
Amount spent on the lamp = 15 u
Amount of savings = 5 u
5 u = 150
1 u = 150 ÷ 5 = 30
Abi's salary
= 24 u
= 24 x 30
= $720
Answer(s): $720
