PSLE Liam was given a fixed amount of allowance each month. In February, he saved $470 and spent the rest. In March, he saved 40% less and his spending increased by 20%. How much was Liam's allowance for each month?
|
Savings (%) |
Spending (u) |
Before
|
100% $470 |
100 u
|
Change |
- 40% |
+ 20 u |
After |
60% |
120 u |
100% of savings = 470
1% of savings = 470 ÷ 100 = 4.7
40% of savings = 40% x 470 = 188
40% of savings = 20 u of spending
20 u of spending = 188
1 u of spending = 188 ÷ 20 = 9.4
100 u of spending = 100 x 9.4 = 940
Liam's allowance for each month
= 100% of savings + 100 u of spending
= 470 + 940
= $1410
Answer(s): $1410