PSLE A bag contains marbles of three different colours.
17 of the marbles are orange. The ratio of the number of yellow marbles to that of blue marbles is 1 : 1. What is the ratio of the number of orange marbles to that of blue marbles?
Orange |
Yellow |
Blue |
Total |
1x1 |
6x1 |
7x1 |
|
1x3 |
1x3 |
|
1 u |
3 u |
3 u |
7 u |
The total number of blue and yellow marbles is the combined repeated identity.
Make the total number blue and yellow marbles the same.
LCM of 6 and 2 = 6
Orange : Blue
1 : 3
Answer(s): 1 : 3