PSLE Gabriel was given a fixed amount of allowance each month. In May, he spent $50 and saved the rest. In June, he spent 30% less and his savings increased by 10%. How much was Gabriel's allowance for each month?
|
Spending (%) |
Savings (u) |
Before
|
100% $50 |
100 u
|
Change |
- 30% |
+ 10 u |
After |
70% |
110 u |
100% of spending = 50
1% of spending = 50 ÷ 100 = 0.5
30% of spending = 30% x 50 = 15
30% of spending = 10 u of savings
10 u of savings = 15
1 u of savings = 15 ÷ 10 = 1.5
100 u of savings = 100 x 1.5 = 150
Gabriel's allowance for each month
= 100% of spending + 100 u of savings
= 50 + 150
= $200
Answer(s): $200