Adam has stickers in 4 colours.
34 of the stickers are yellow.
The rest of the stickers are green, red and blue in the ratio of 2 : 4 : 9.
If there are 80 more red stickers than green stickers,
how many yellow stickers are there?
Yellow |
Green |
Red |
Blue |
3 x 15 |
1 x 15 |
|
2 x 1 |
4 x 1 |
9 x 1 |
45 u |
2 u |
4 u |
9 u |
The number of yellow, green and red stickers is the combined repeated identity.
Make the number of yellow, green and red stickers the same using the LCM of 1 and 15.
LCM of 1 and 15 = 15
Number of more red stickers than green stickers
= 4 u - 2 u
= 2 u
2 u = 80
1 u = 80 ÷ 2 = 40
Number of yellow stickers
= 45 u
= 45 x 40
= 1800
Answer(s): 1800