PSLE Jeremy was given a fixed amount of allowance each month. In February, he spent $240 and saved the rest. In March, he spent 40% less and his savings increased by 20%. How much was Jeremy's allowance for each month?
|
Spending (%) |
Savings (u) |
Before
|
100% $240 |
100 u
|
Change |
- 40% |
+ 20 u |
After |
60% |
120 u |
100% of spending = 240
1% of spending = 240 ÷ 100 = 2.4
40% of spending = 40% x 240 = 96
40% 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
Jeremy's allowance for each month
= 100% of spending + 100 u of savings
= 240 + 480
= $720
Answer(s): $720