PSLE A bag contains marbles of three different colours.
17 of the marbles are orange. The ratio of the number of green marbles to that of blue marbles is 9 : 1. What is the ratio of the number of green marbles to that of orange marbles?
Orange |
Green |
Blue |
Total |
1x5 |
6x5 |
7x5 |
|
9x3 |
1x3 |
|
5 u |
27 u |
3 u |
35 u |
The total number of blue and green marbles is the combined repeated identity.
Make the total number blue and green marbles the same.
LCM of 6 and 10 = 30
Green : Orange
27 : 5
Answer(s): 27 : 5