Adam has stickers in 4 colours.
27 of the stickers are blue.
The rest of the stickers are yellow, red and green in the ratio of 3 : 5 : 8.
If there are 80 more red stickers than yellow stickers,
how many blue stickers are there?
Blue |
Yellow |
Red |
Green |
2 x 16 |
5 x 16 |
|
3 x 5 |
5 x 5 |
8 x 5 |
32 u |
15 u |
25 u |
40 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 5 and 16.
LCM of 5 and 16 = 80
Number of more red stickers than yellow stickers
= 25 u - 15 u
= 10 u
10 u = 80
1 u = 80 ÷ 10 = 8
Number of blue stickers
= 32 u
= 32 x 8
= 256
Answer(s): 256