PSLE A bag contains marbles of three different colours.
17 of the marbles are brown. The ratio of the number of blue marbles to that of orange marbles is 2 : 7. What is the ratio of the number of brown marbles to that of orange marbles?
Brown |
Blue |
Orange |
Total |
1x3 |
6x3 |
7x3 |
|
2x2 |
7x2 |
|
3 u |
4 u |
14 u |
21 u |
The total number of orange and blue marbles is the combined repeated identity.
Make the total number orange and blue marbles the same.
LCM of 6 and 9 = 18
Brown : Orange
3 : 14
Answer(s): 3 : 14