Adam has stickers in 4 colours.
35 of the stickers are red.
The rest of the stickers are blue, green and yellow in the ratio of 3 : 4 : 8.
If there are 140 more green stickers than blue stickers,
how many red stickers are there?
Red |
Blue |
Green |
Yellow |
3 x 15 |
2 x 15 |
|
3 x 2 |
4 x 2 |
8 x 2 |
45 u |
6 u |
8 u |
16 u |
The number of red, blue and green stickers is the combined repeated identity.
Make the number of red, blue and green stickers the same using the LCM of 2 and 15.
LCM of 2 and 15 = 30
Number of more green stickers than blue stickers
= 8 u - 6 u
= 2 u
2 u = 140
1 u = 140 ÷ 2 = 70
Number of red stickers
= 45 u
= 45 x 70
= 3150
Answer(s): 3150