There were some white, pink and purple markers in a box.
211 of the markers were pink. The ratio of the number of white markers to the number of purple markers was 4 : 5. There were 336 fewer pink markers than purple markers.
- Find the ratio of the number of white markers to the number of pink markers to the number of purple markers in the box.
- How many purple markers were there?
Pink |
White |
Purple |
Total |
2 |
9 |
11 |
|
4 |
5 |
|
2 u |
4 u |
5 u |
11 u |
(a)
White : Pink : Purple
4 : 2 : 5
(b)
Number of fewer pink markers than purple markers
= 5 u - 2 u
= 3 u
3 u = 336
1 u = 336 ÷ 3 = 112
Number of purple markers
= 5 u
= 5 x 112
= 560
Answer(s): (a) 4 : 2 : 5; (b) 560