Adam has 240 green stickers, red stickers and blue stickers.
75% of the stickers are red.
25% of the remaining stickers are green.
The rest are blue stickers.
- How many blue stickers are there?
- How many less green stickers than red stickers?
Red |
Green |
Blue |
3 u |
1 u |
|
25% |
75% |
|
1 u x 25% = 0.25 u
|
1 u x 75% = 0.75 u
|
75% =
75100 =
34 Total number of stickers = 4 u
Number of red stickers = 3 u
Number of green and blue stickers
= 4 u - 3 u
= 1 u
4 u = 240
1 u = 240 ÷ 4 = 60
(a)
Percent of remaining stickers that are blue
= 100% - 25%
= 75%
Number of blue stickers
= 75% x 1 u
= 0.75 x 1 u
= 0.75 u
= 0.75 x 60
= 45
(b)
Number of green stickers
= 25% x 1 u
= 0.25 x 1 u
= 0.25 u
Number of red stickers = 3 u
Number of less green stickers than red stickers
= 3 u - 0.25 u
= 2.75 u
= 2.75 x 60
= 165
Answer(s): (a) 45; (b) 165