Adam has stickers in 4 colours.
27 of the stickers are green.
The rest of the stickers are yellow, red and blue in the ratio of 3 : 4 : 9.
If there are 40 more red stickers than yellow stickers,
how many green stickers are there?
Green |
Yellow |
Red |
Blue |
2 x 16 |
5 x 16 |
|
3 x 5 |
4 x 5 |
9 x 5 |
32 u |
15 u |
20 u |
45 u |
The number of green, yellow and red stickers is the combined repeated identity.
Make the number of green, yellow and red stickers the same using the LCM of 5 and 16.
LCM of 5 and 16 = 80
Number of more red stickers than yellow stickers
= 20 u - 15 u
= 5 u
5 u = 40
1 u = 40 ÷ 5 = 8
Number of green stickers
= 32 u
= 32 x 8
= 256
Answer(s): 256