## Discussion

If the average of 2*x* and 4*x* is 12, then *x* =

(A) | 1 |

(B) | ... |

(C) | ... |

(D) | ... |

(E) | ... |

(F) | ... |

The solution is

Posted: 02/23/2014 00:30

I don't understand y u put it over 2

Sonara, an average of two numbers is the sum of those numbers divided by 2. The average of 2 and 3 is (2+3)/2. And so the average of 2x and 4x is (2x + 4x)/2.