Four-component 27131

The four-component ointment contains components A, B, C, and D. Components A and B are mixed in a ratio of 1:2, components B and C in a ratio of 3:5, and components B and D in a ratio of 4:3. In what proportion should the pharmacist mix the ointment?

Correct answer:

r = 6:12:20:9

Step-by-step explanation:

A:B=1:2 B:C = 3:5 B:D = 4:3  B: 2 ...  prime number 3 ...  prime number 4=22 LCM(2,3,4)=223=12  x=LCM(2,3,4)=12  A:B=6:12 B:C = 12:20 B:D = 12:9  r=6:12:20:9

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