T2 PS 102

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102. 10776-!-item-!-187;#058&007653
A certain store found that last year the average (arithmetic mean) monthly sales from January through October was $120,000. In November and December, the monthly sales were 3 and 5 times, respectively, the average for the other 10 months. What was the store's average monthly sales last year?

were 3 and 5 times是指啥意思

(A) $180,000
(B) $216,000
(C) $252,000
(D) $318,000
(E) $360,000

ans:A

[Huang Hsin-Yi]

$120,000. In November and December, the monthly sales were 3 and 5 times, respectively,

11月是120000的3倍
12月是120000的5倍

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THANKS