Adam has stickers in 4 colours.
47 of the stickers are blue.
The rest of the stickers are red, yellow and green in the ratio of 3 : 4 : 4.
If there are 90 more yellow stickers than red stickers,
how many blue stickers are there?
Blue |
Red |
Yellow |
Green |
4 x 11 |
3 x 11 |
|
3 x 3 |
4 x 3 |
4 x 3 |
44 u |
9 u |
12 u |
12 u |
The number of blue, red and yellow stickers is the combined repeated identity.
Make the number of blue, red and yellow stickers the same using the LCM of 3 and 11.
LCM of 3 and 11 = 33
Number of more yellow stickers than red stickers
= 12 u - 9 u
= 3 u
3 u = 90
1 u = 90 ÷ 3 = 30
Number of blue stickers
= 44 u
= 44 x 30
= 1320
Answer(s): 1320