Lets get started :)
The ratio of juice is as follows:
orange : mango : apple
3 : 5 : 4
↑
35 bottles
5x = 35
5 and 5 cancels out
x = 7
3x + 5x + 4x = total
Subsitute the value you go for x, x = 7
3(7) + 5(7) + 4(7) = total
21 + 35 + 28 = 84
Total of
84 bottles of juices :)
Your final answer will be
option D