PSLE A bag contains marbles of three different colours.
16 of the marbles are brown. The ratio of the number of green marbles to that of blue marbles is 1 : 1. What is the ratio of the number of brown marbles to that of blue marbles?
Brown |
Green |
Blue |
Total |
1x2 |
5x2 |
6x2 |
|
1x5 |
1x5 |
|
2 u |
5 u |
5 u |
12 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 5 and 2 = 10
Brown : Blue
2 : 5
Answer(s): 2 : 5