Adam has stickers in 4 colours.
710 of the stickers are red.
The rest of the stickers are green, yellow and blue in the ratio of 4 : 5 : 4.
If there are 120 more yellow stickers than green stickers,
how many red stickers are there?
Red |
Green |
Yellow |
Blue |
7 x 13 |
3 x 13 |
|
4 x 3 |
5 x 3 |
4 x 3 |
91 u |
12 u |
15 u |
12 u |
The number of red, green and yellow stickers is the combined repeated identity.
Make the number of red, green and yellow stickers the same using the LCM of 3 and 13.
LCM of 3 and 13 = 39
Number of more yellow stickers than green stickers
= 15 u - 12 u
= 3 u
3 u = 120
1 u = 120 ÷ 3 = 40
Number of red stickers
= 91 u
= 91 x 40
= 3640
Answer(s): 3640