There were some blue, red and green markers in a box.
19 of the markers were red. The ratio of the number of blue markers to the number of green markers was 3 : 5. There were 296 fewer red markers than green markers.
- Find the ratio of the number of blue markers to the number of red markers to the number of green markers in the box.
- How many green markers were there?
Red |
Blue |
Green |
Total |
1 |
8 |
9 |
|
3 |
5 |
|
1 u |
3 u |
5 u |
9 u |
(a)
Blue : Red : Green
3 : 1 : 5
(b)
Number of fewer red markers than green markers
= 5 u - 1 u
= 4 u
4 u = 296
1 u = 296 ÷ 4 = 74
Number of green markers
= 5 u
= 5 x 74
= 370
Answer(s): (a) 3 : 1 : 5; (b) 370