Adam has stickers in 4 colours.
45 of the stickers are blue.
The rest of the stickers are yellow, red and green in the ratio of 1 : 3 : 7.
If there are 80 more red stickers than yellow stickers,
how many blue stickers are there?
Blue |
Yellow |
Red |
Green |
4 x 11 |
1 x 11 |
|
1 x 1 |
3 x 1 |
7 x 1 |
44 u |
1 u |
3 u |
7 u |
The number of blue, yellow and red stickers is the combined repeated identity.
Make the number of blue, yellow and red stickers the same using the LCM of 1 and 11.
LCM of 1 and 11 = 11
Number of more red stickers than yellow stickers
= 3 u - 1 u
= 2 u
2 u = 80
1 u = 80 ÷ 2 = 40
Number of blue stickers
= 44 u
= 44 x 40
= 1760
Answer(s): 1760