Adam has stickers in 4 colours.
27 of the stickers are blue.
The rest of the stickers are green, red and yellow in the ratio of 2 : 3 : 8.
If there are 70 more red stickers than green stickers,
how many blue stickers are there?
Blue |
Green |
Red |
Yellow |
2 x 13 |
5 x 13 |
|
2 x 5 |
3 x 5 |
8 x 5 |
26 u |
10 u |
15 u |
40 u |
The number of blue, green and red stickers is the combined repeated identity.
Make the number of blue, green and red stickers the same using the LCM of 5 and 13.
LCM of 5 and 13 = 65
Number of more red stickers than green stickers
= 15 u - 10 u
= 5 u
5 u = 70
1 u = 70 ÷ 5 = 14
Number of blue stickers
= 26 u
= 26 x 14
= 364
Answer(s): 364