Sally has 600 ml of drink Karen has 600 ml of lime juice
When it is mixed at a ratio of 2:7:3 . . .pineapple:orange:lime (respectively) . . this means . . . there are a total of 2 + 7 + 3 parts = 12 parts . . and each part individually is as follows:
pineapple = 2/12 orange = 7/12 lime = 3/12
Sally has 12 parts = 600 ml of drink . . pineapple = 2/12*600ml = 100 ml pineapple . . orange = 7/12*600ml = 350 ml orange . . lime = 3/12*600ml = 150 ml lime
We know Karen has 600 ml of lime juice and if that is 3/12 of the total, then 600*12/3 = the total drink = 2400 ml of drink
Karen has 12 parts = 2400 ml of drink . . pineapple = 2/12*2400ml = 400 ml pineapple . . orange = 7/12*2400ml = 1400 ml orange . . lime = 3/12*2400ml = 150 ml lime
Thus . . . (for Karen) . . . <u><em>A = 2400 ml of drink</em></u> <u><em>B = 400 ml of orange juice</em></u> <u><em>C = 1400 ml of pineapple juice</em></u>