Adam has stickers in 4 colours.
35 of the stickers are red.
The rest of the stickers are yellow, green and blue in the ratio of 3 : 5 : 4.
If there are 150 more green stickers than yellow stickers,
how many red stickers are there?
Red |
Yellow |
Green |
Blue |
3 x 6 |
2 x 6 |
|
3 x 1 |
5 x 1 |
4 x 1 |
18 u |
3 u |
5 u |
4 u |
The number of red, yellow and green stickers is the combined repeated identity.
Make the number of red, yellow and green stickers the same using the LCM of 2 and 12.
LCM of 2 and 12 = 12
Number of more green stickers than yellow stickers
= 5 u - 3 u
= 2 u
2 u = 150
1 u = 150 ÷ 2 = 75
Number of red stickers
= 18 u
= 18 x 75
= 1350
Answer(s): 1350