Adam has stickers in 4 colours.
58 of the stickers are green.
The rest of the stickers are blue, red and yellow in the ratio of 3 : 5 : 7.
If there are 20 more red stickers than blue stickers,
how many green stickers are there?
Green |
Blue |
Red |
Yellow |
5 x 5 |
3 x 5 |
|
3 x 1 |
5 x 1 |
7 x 1 |
25 u |
3 u |
5 u |
7 u |
The number of green, blue and red stickers is the combined repeated identity.
Make the number of green, blue and red stickers the same using the LCM of 3 and 15.
LCM of 3 and 15 = 15
Number of more red stickers than blue stickers
= 5 u - 3 u
= 2 u
2 u = 20
1 u = 20 ÷ 2 = 10
Number of green stickers
= 25 u
= 25 x 10
= 250
Answer(s): 250