PSLE Linda saved $1050 in May. This amount was a 50% increase from what she saved in April. The amount she saved in June was a 10% 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 |
+ 50% |
|
May |
150% |
100 u |
Change |
|
- 10 u |
June |
|
90 u |
(a)
Savings in April = 100%
Savings in May = 100% + 50% = 150%
150% = 1050
1% = 1050 ÷ 150 = 7
Savings in April
= 100%
= 100 x 7
= $700
Savings in May = 100 u
Savings in June = 100 u - 10 u = 90 u
100 u = 1050
1 u = 1050 ÷ 100 = 10.5
Savings in June
= 90 u
= 90 x 10.5
= $945
Total savings from April to June
= 700 + 1050 + 945
= $2695
(b)
Increase in savings in June compared to April
= 945 - 700
= $245
Percentage increase
=
Increase in savingsSavings in April x 100%
=
245700 x 100%
= 35%
Answer(s): (a) $2695; (b) 35%