Answer:
120
Explanation:
So a ratio of 3:2:7 means that for every 3 orange juice bottles there are 2 passion fruit juice bottles, and 7 grape juice bottles.
I you have 20 passion fruit juice bottles you are increasing the ratio by a rate of 10. (20/2 = 10)
Therefore we need to multiply the ratio by 10.
3*10 = 30
2*10 = 20
7*10 = 70
Now we have the total number of each type of juice. Since it's asking the total number we need to add all three.
30 + 20 +70 = 120
Therefore there are 120 total juice bottles.