Adam has 250 red stickers, blue stickers and green stickers.
60% of the stickers are blue.
60% of the remaining stickers are red.
The rest are green stickers.
- How many green stickers are there?
- How many less red stickers than blue stickers?
Blue |
Red |
Green |
3 u |
2 u |
|
60% |
40% |
|
2 u x 60% = 1.2 u
|
2 u x 40% = 0.8 u
|
60% =
60100 =
35 Total number of stickers = 5 u
Number of blue stickers = 3 u
Number of red and green stickers
= 5 u - 3 u
= 2 u
5 u = 250
1 u = 250 ÷ 5 = 50
(a)
Percent of remaining stickers that are green
= 100% - 60%
= 40%
Number of green stickers
= 40% x 2 u
= 0.4 x 2 u
= 0.8 u
= 0.8 x 50
= 40
(b)
Number of red stickers
= 60% x 2 u
= 0.6 x 2 u
= 1.2 u
Number of blue stickers = 3 u
Number of less red stickers than blue stickers
= 3 u - 1.2 u
= 1.8 u
= 1.8 x 50
= 90
Answer(s): (a) 40; (b) 90