PSLE A bag contains stickers of three different colours.
15 of the stickers are yellow. The ratio of the number of blue stickers to that of orange stickers is 1 : 7. What is the ratio of the number of yellow stickers to that of orange stickers?
Yellow |
Blue |
Orange |
Total |
1x2 |
4x2 |
5x2 |
|
1x1 |
7x1 |
|
2 u |
1 u |
7 u |
10 u |
The total number of orange and blue stickers is the combined repeated identity.
Make the total number orange and blue stickers the same.
LCM of 4 and 8 = 8
Yellow : Orange
2 : 7
Answer(s): 2 : 7