PSLE A bag contains marbles of three different colours.
17 of the marbles are blue. The ratio of the number of purple marbles to that of yellow marbles is 1 : 4. What is the ratio of the number of purple marbles to that of blue marbles?
Blue |
Purple |
Yellow |
Total |
1x5 |
6x5 |
7x5 |
|
1x6 |
4x6 |
|
5 u |
6 u |
24 u |
35 u |
The total number of yellow and purple marbles is the combined repeated identity.
Make the total number yellow and purple marbles the same.
LCM of 6 and 5 = 30
Purple : Blue
6 : 5
Answer(s): 6 : 5