Adam has stickers in 4 colours.
56 of the stickers are blue.
The rest of the stickers are yellow, green and red in the ratio of 1 : 5 : 6.
If there are 20 more green stickers than yellow stickers,
how many blue stickers are there?
Blue |
Yellow |
Green |
Red |
5 x 12 |
1 x 12 |
|
1 x 1 |
5 x 1 |
6 x 1 |
60 u |
1 u |
5 u |
6 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 1 and 12.
LCM of 1 and 12 = 12
Number of more green stickers than yellow stickers
= 5 u - 1 u
= 4 u
4 u = 20
1 u = 20 ÷ 4 = 5
Number of blue stickers
= 60 u
= 60 x 5
= 300
Answer(s): 300