Adam has 340 stickers in 3 colours.
25% of the stickers are red.
The number of green stickers is
23 that of blue stickers.
- What percentage of the stickers is blue?
- How many green stickers are there?
Red |
Green |
Blue |
Total |
1 x 5 |
3 x 5 |
4 x 5 |
|
2 x 3 |
3 x 3 |
|
5 u |
6 u |
9 u |
20 u |
(a)
25% =
25100 =
14 The number of green and blue stickers is the combined repeated identity.
Make the number of green and blue stickers the same using the LCM of 3 and 5.
LCM of 3 and 5 = 15
Percentage of the stickers that is blue
=
920 x 100%
= 45%
(b)
Total number of stickers = 20 u
20 u = 340
1 u = 340 ÷ 20 = 17
Number of green stickers
= 6 u
= 6 x 17
= 102
Answer(s): (a) 45%; (b) 102