1.

In what proportion may three kinds of rice bought at 6 , 10 and 14 be mixed to produce a mixture

A. 4 : 1 : 1
B. 3 : 1 : 1
C. 2 : 1 : 1
D. 2 : 2 : 1
Answer» B. 3 : 1 : 1


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