Adam has stickers in 4 colours.
79 of the stickers are yellow.
The rest of the stickers are red, blue and green in the ratio of 1 : 2 : 4.
If there are 110 more blue stickers than red stickers,
how many yellow stickers are there?
Yellow |
Red |
Blue |
Green |
7 x 7 |
2 x 7 |
|
1 x 2 |
2 x 2 |
4 x 2 |
49 u |
2 u |
4 u |
8 u |
The number of yellow, red and blue stickers is the combined repeated identity.
Make the number of yellow, red and blue stickers the same using the LCM of 2 and 7.
LCM of 2 and 7 = 14
Number of more blue stickers than red stickers
= 4 u - 2 u
= 2 u
2 u = 110
1 u = 110 ÷ 2 = 55
Number of yellow stickers
= 49 u
= 49 x 55
= 2695
Answer(s): 2695