PSLE Linda saved $480 in May. This amount was a 20% increase from what she saved in April. The amount she saved in June was a 5% decrease from what she saved in May.
- What was the total amount that Linda saved from April to June?
- What was the percentage increase in the amount Linda saved in June compared to April?
|
Savings |
April |
100% |
|
Change |
+ 20% |
|
May |
120% |
100 u |
Change |
|
- 5 u |
June |
|
95 u |
(a)
Savings in April = 100%
Savings in May = 100% + 20% = 120%
120% = 480
1% = 480 ÷ 120 = 4
Savings in April
= 100%
= 100 x 4
= $400
Savings in May = 100 u
Savings in June = 100 u - 5 u = 95 u
100 u = 480
1 u = 480 ÷ 100 = 4.8
Savings in June
= 95 u
= 95 x 4.8
= $456
Total savings from April to June
= 400 + 480 + 456
= $1336
(b)
Increase in savings in June compared to April
= 456 - 400
= $56
Percentage increase
=
Increase in savingsSavings in April x 100%
=
56400 x 100%
= 14%
Answer(s): (a) $1336; (b) 14%