PSLE Jenson was given a fixed amount of allowance each month. In January, he saved $220 and spent the rest. In February, he saved 30% less and his spending increased by 10%. How much was Jenson's allowance for each month?
|
Savings (%) |
Spending (u) |
Before
|
100% $220 |
100 u
|
Change |
- 30% |
+ 10 u |
After |
70% |
110 u |
100% of savings = 220
1% of savings = 220 ÷ 100 = 2.2
30% of savings = 30% x 220 = 66
30% of savings = 10 u of spending
10 u of spending = 66
1 u of spending = 66 ÷ 10 = 6.6
100 u of spending = 100 x 6.6 = 660
Jenson's allowance for each month
= 100% of savings + 100 u of spending
= 220 + 660
= $880
Answer(s): $880