PSLEIvory had a collection of stamps from Japan, Kenya and Canada. She had 164 stamps from Japan. 30% of her stamps were from Kenya. She had 44 fewer stamps from Canada than from Kenya.
- What was the total number of stamps in Ivory's collection?
- Ivory's aunt gave her some stamps from Kenya. Her total collection increased by 25%. What percentage of her collection was from Kenya after that?
(a)
Japan |
Kenya |
Canada |
Total |
164 |
30% |
30% - 44 |
100% |
|
+ 25% |
|
+ 25% |
|
55% |
|
125% |
Total number of stamps
= 30% + 30% - 44 + 164
= 60% + 120
100% = 60% + 120
100% - 60% = 120
40% = 120
1% = 120 ÷ 40 = 3
Total number of stamps in Ivory's collection
= 100%
= 100 x 3
= 300
(b)
Old stamp collection = 100%
New stamp collection = 100% + 25% = 125%
Percentage of stamps from Kenya
= 30% + 25%
= 55%
Percentage of her collection from Kenya
=
55125 x 100%
= 44%
Answer(s): (a) 300; (b) 44%