有一个数学题目想请教

丁香花儿

Month     Average Price per Dozen

April        $1.26

May        $1.20

June       $1.08

The table above shows the average(arithmetic mean) price er dozen of the large grade A eggs sols in a certain stoore during three successive montha.If 2/3 as many dozen were sold in April as in May,and twice as many were sold in June as in April,what was the average price per dozen of th eggs sold over the three-month period?

(A)$1.08; (B)$1.10; (C)$1.14;(D)1.16; (E)1.18

答案是D,但是我怎么算都是$1.2啊,望高手赐教!

丁香花儿

thank you!

偶又是题目理解错误,汗啊,英语阅读要提高了!

这是新东方GMAT培训班蓝皮书上册P135 第19题

lisahuangs

suppose May sold x, April sold 2x/3, June sold4x/3

average
= [(2x/3)*1.26+ x*1.20 + (4x/3)*1.08] / [(2x/3)+x+(4x/3)]
= (2*1.26 + 3*1.20 + 4*1.08) /(3*3)
= 10.44/9
= 1.16