Adam has 140 blue stickers, green stickers and red stickers.
60% of the stickers are green.
25% of the remaining stickers are blue.
The rest are red stickers.
- How many red stickers are there?
- How many less blue stickers than green stickers?
Green |
Blue |
Red |
3 u |
2 u |
|
25% |
75% |
|
2 u x 25% = 0.5 u
|
2 u x 75% = 1.5 u
|
60% =
60100 =
35 Total number of stickers = 5 u
Number of green stickers = 3 u
Number of blue and red stickers
= 5 u - 3 u
= 2 u
5 u = 140
1 u = 140 ÷ 5 = 28
(a)
Percent of remaining stickers that are red
= 100% - 25%
= 75%
Number of red stickers
= 75% x 2 u
= 0.75 x 2 u
= 1.5 u
= 1.5 x 28
= 42
(b)
Number of blue stickers
= 25% x 2 u
= 0.25 x 2 u
= 0.5 u
Number of green stickers = 3 u
Number of less blue stickers than green stickers
= 3 u - 0.5 u
= 2.5 u
= 2.5 x 28
= 70
Answer(s): (a) 42; (b) 70