PSLE Perry was given a fixed amount of allowance each month. In February, he spent $440 and saved the rest. In March, he spent 10% less and his savings increased by 40%. How much was Perry's allowance for each month?
|
Spending (%) |
Savings (u) |
Before
|
100% $440 |
100 u
|
Change |
- 10% |
+ 40 u |
After |
90% |
140 u |
100% of spending = 440
1% of spending = 440 ÷ 100 = 4.4
10% of spending = 10% x 440 = 44
10% of spending = 40 u of savings
40 u of savings = 44
1 u of savings = 44 ÷ 40 = 1.1
100 u of savings = 100 x 1.1 = 110
Perry's allowance for each month
= 100% of spending + 100 u of savings
= 440 + 110
= $550
Answer(s): $550