a jar contains 34 marbles, of which 4 are blue, 27 are red and the rest are green. what is the ratio of blue marbles to green marbles

4:3

Step-by-step explanation:

1. Total of 34 marbles

2. 4 blue marbles + 27 red marbles = 31 blue and red marbles

3. Total of 34 marbles - 31 blue and red marbles = 3 remaining marbles

4. The remaining marbles are green so there are 3 green marbles.

5. 4 blue marbles to 3 green marbles

5. 4:3 or 4 to 3