PSLE Gabriel was given a fixed amount of allowance each month. In April, he spent $320 and saved the rest. In May, he spent 30% less and his savings increased by 20%. How much was Gabriel's allowance for each month?
|
Spending (%) |
Savings (u) |
Before
|
100% $320 |
100 u
|
Change |
- 30% |
+ 20 u |
After |
70% |
120 u |
100% of spending = 320
1% of spending = 320 ÷ 100 = 3.2
30% of spending = 30% x 320 = 96
30% of spending = 20 u of savings
20 u of savings = 96
1 u of savings = 96 ÷ 20 = 4.8
100 u of savings = 100 x 4.8 = 480
Gabriel's allowance for each month
= 100% of spending + 100 u of savings
= 320 + 480
= $800
Answer(s): $800