Adam has stickers in 4 colours.
27 of the stickers are red.
The rest of the stickers are yellow, green and blue in the ratio of 1 : 3 : 6.
If there are 80 more green stickers than yellow stickers,
how many red stickers are there?
Red |
Yellow |
Green |
Blue |
2 x 2 |
5 x 2 |
|
1 x 1 |
3 x 1 |
6 x 1 |
4 u |
1 u |
3 u |
6 u |
The number of red, yellow and green stickers is the combined repeated identity.
Make the number of red, yellow and green stickers the same using the LCM of 5 and 10.
LCM of 5 and 10 = 10
Number of more green stickers than yellow stickers
= 3 u - 1 u
= 2 u
2 u = 80
1 u = 80 ÷ 2 = 40
Number of red stickers
= 4 u
= 4 x 40
= 160
Answer(s): 160