PSLE A bag contains stickers of three different colours.
15 of the stickers are brown. The ratio of the number of red stickers to that of green stickers is 4 : 3. What is the ratio of the number of red stickers to that of brown stickers?
Brown |
Red |
Green |
Total |
1x7 |
4x7 |
5x7 |
|
4x4 |
3x4 |
|
7 u |
16 u |
12 u |
35 u |
The total number of green and red stickers is the combined repeated identity.
Make the total number green and red stickers the same.
LCM of 4 and 7 = 28
Red : Brown
16 : 7
Answer(s): 16 : 7