Adam has stickers in 4 colours.
27 of the stickers are yellow.
The rest of the stickers are red, green and blue in the ratio of 4 : 5 : 5.
If there are 150 more green stickers than red stickers,
how many yellow stickers are there?
Yellow |
Red |
Green |
Blue |
2 x 14 |
5 x 14 |
|
4 x 5 |
5 x 5 |
5 x 5 |
28 u |
20 u |
25 u |
25 u |
The number of yellow, red and green stickers is the combined repeated identity.
Make the number of yellow, red and green stickers the same using the LCM of 5 and 14.
LCM of 5 and 14 = 70
Number of more green stickers than red stickers
= 25 u - 20 u
= 5 u
5 u = 150
1 u = 150 ÷ 5 = 30
Number of yellow stickers
= 28 u
= 28 x 30
= 840
Answer(s): 840