Adam has stickers in 4 colours.
79 of the stickers are yellow.
The rest of the stickers are blue, green and red in the ratio of 1 : 4 : 4.
If there are 120 more green stickers than blue stickers,
how many yellow stickers are there?
Yellow |
Blue |
Green |
Red |
7 x 9 |
2 x 9 |
|
1 x 2 |
4 x 2 |
4 x 2 |
63 u |
2 u |
8 u |
8 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 9.
LCM of 2 and 9 = 18
Number of more green stickers than blue stickers
= 8 u - 2 u
= 6 u
6 u = 120
1 u = 120 ÷ 6 = 20
Number of yellow stickers
= 63 u
= 63 x 20
= 1260
Answer(s): 1260