Adam has stickers in 4 colours.
57 of the stickers are red.
The rest of the stickers are yellow, blue and green in the ratio of 1 : 3 : 6.
If there are 30 more blue stickers than yellow stickers,
how many red stickers are there?
Red |
Yellow |
Blue |
Green |
5 x 5 |
2 x 5 |
|
1 x 1 |
3 x 1 |
6 x 1 |
25 u |
1 u |
3 u |
6 u |
The number of red, yellow and blue stickers is the combined repeated identity.
Make the number of red, yellow and blue stickers the same using the LCM of 2 and 10.
LCM of 2 and 10 = 10
Number of more blue stickers than yellow stickers
= 3 u - 1 u
= 2 u
2 u = 30
1 u = 30 ÷ 2 = 15
Number of red stickers
= 25 u
= 25 x 15
= 375
Answer(s): 375