Adam has stickers in 4 colours.
57 of the stickers are red.
The rest of the stickers are green, blue and yellow in the ratio of 3 : 5 : 9.
If there are 100 more blue stickers than green stickers,
how many red stickers are there?
Red |
Green |
Blue |
Yellow |
5 x 17 |
2 x 17 |
|
3 x 2 |
5 x 2 |
9 x 2 |
85 u |
6 u |
10 u |
18 u |
The number of red, green and blue stickers is the combined repeated identity.
Make the number of red, green and blue stickers the same using the LCM of 2 and 17.
LCM of 2 and 17 = 34
Number of more blue stickers than green stickers
= 10 u - 6 u
= 4 u
4 u = 100
1 u = 100 ÷ 4 = 25
Number of red stickers
= 85 u
= 85 x 25
= 2125
Answer(s): 2125