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If the average (arithmetic mean) of a and b is j, and the average of c, d, and e is k, what is the average of a, b, c, d, e and j ?
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A.$$\frac{2k+3j}{6}$$
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B.$$\frac{k+2j}{3}$$
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C.$$\frac{k+j}{2}$$
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D.$$\frac{2k+3j}{5}$$
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E.$$\frac{k+2j}{4}$$
C显示答案
