The ratio of Nicotine to Heroine in four types of drugs of equal quant – McqOptions

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1.	The ratio of Nicotine to Heroine in four types of drugs of equal quantity is 2 : 3, 3 : 7, 4: 11 and 11 :9 respectively. The four drugs are mixed together. What is the ratio of Nicotine to Heroine after mixing?
A.	213 : 91
B.	418 : 189
C.	91 : 149
D.	149 : 81
E.	None of these
Answer» D. 149 : 81

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