Adam has 400 red stickers, blue stickers and green stickers.
40% 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 |
2 u |
3 u |
|
60% |
40% |
|
3 u x 60% = 1.8 u
|
3 u x 40% = 1.2 u
|
40% =
40100 =
25 Total number of stickers = 5 u
Number of blue stickers = 2 u
Number of red and green stickers
= 5 u - 2 u
= 3 u
5 u = 400
1 u = 400 ÷ 5 = 80
(a)
Percent of remaining stickers that are green
= 100% - 60%
= 40%
Number of green stickers
= 40% x 3 u
= 0.4 x 3 u
= 1.2 u
= 1.2 x 80
= 96
(b)
Number of red stickers
= 60% x 3 u
= 0.6 x 3 u
= 1.8 u
Number of blue stickers = 2 u
Number of less red stickers than blue stickers
= 2 u - 1.8 u
= 0.2 u
= 0.2 x 80
= 16
Answer(s): (a) 96; (b) 16