Answer:
1/5
Explanation:
If you mix 30 ml of orange juice, 20 ml of apple juice and 50 ml of coconut milk you will get a total of 30 + 20 + 50 = 100 ml of cocktail
The proportion of apple juice in the cocktail is merely the volume of apple juice added to the total volume of cocktail
= 20/100 = 1/5