Question

a bag contains green, yellow, and orange marbles. the ratio of green marbles to yellow marbles is 2:5. The ratio of yellow marbles to orange marbles is 3:4. What is the ratio of green marbles to orange marbles?

Answer 1

If yellow is 15, then we set 2/5 = x/15, letting x = green.  5x = 30, so x = 6.   Again, with yellow being 15, then we set 3/4 = 15/x, letting x = orange.  3x = 60, so x = 20. Then, the ratio of green to orange is 6:20 = 3:10. Hope this helps!

If you have any questions let me know 

I hope this helps you again!