Adam has stickers in 4 colours.
35 of the stickers are yellow.
The rest of the stickers are blue, green and red in the ratio of 2 : 4 : 5.
If there are 120 more green stickers than blue stickers,
how many yellow stickers are there?
Yellow |
Blue |
Green |
Red |
3 x 11 |
2 x 11 |
|
2 x 2 |
4 x 2 |
5 x 2 |
33 u |
4 u |
8 u |
10 u |
The number of yellow, blue and green stickers is the combined repeated identity.
Make the number of yellow, blue and green stickers the same using the LCM of 2 and 11.
LCM of 2 and 11 = 22
Number of more green stickers than blue stickers
= 8 u - 4 u
= 4 u
4 u = 120
1 u = 120 ÷ 4 = 30
Number of yellow stickers
= 33 u
= 33 x 30
= 990
Answer(s): 990