Adam has stickers in 4 colours.
78 of the stickers are blue.
The rest of the stickers are red, yellow and green in the ratio of 2 : 4 : 5.
If there are 60 more yellow stickers than red stickers,
how many blue stickers are there?
Blue |
Red |
Yellow |
Green |
7 x 11 |
1 x 11 |
|
2 x 1 |
4 x 1 |
5 x 1 |
77 u |
2 u |
4 u |
5 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 1 and 11.
LCM of 1 and 11 = 11
Number of more yellow stickers than red stickers
= 4 u - 2 u
= 2 u
2 u = 60
1 u = 60 ÷ 2 = 30
Number of blue stickers
= 77 u
= 77 x 30
= 2310
Answer(s): 2310