Adam has stickers in 4 colours.
38 of the stickers are blue.
The rest of the stickers are yellow, green and red in the ratio of 1 : 2 : 5.
If there are 100 more green stickers than yellow stickers,
how many blue stickers are there?
Blue |
Yellow |
Green |
Red |
3 x 8 |
5 x 8 |
|
1 x 5 |
2 x 5 |
5 x 5 |
24 u |
5 u |
10 u |
25 u |
The number of blue, yellow and green stickers is the combined repeated identity.
Make the number of blue, yellow and green stickers the same using the LCM of 5 and 8.
LCM of 5 and 8 = 40
Number of more green stickers than yellow stickers
= 10 u - 5 u
= 5 u
5 u = 100
1 u = 100 ÷ 5 = 20
Number of blue stickers
= 24 u
= 24 x 20
= 480
Answer(s): 480