Re: [計量] 3題CAT請教~

看板GRE (GRE入學考試)作者think12381時間16年前 (2009/08/19 15:41)推噓1(1推 0噓 0→)

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※ 引述《goaler (1345)》之銘言： : 已爬文，這三題好像沒人問過~ : TEST13 : 28. : A candy assortment consists of seven flavors of chocolate-covered creams : packed in two layered boxes with 27 creams in each layer. The flavors are : always packed in rows so that the flavor varies with each piece in the : following order: vanilla, orange, cherry, vanilla, raspberry, lime, pecan, : cherry, and lemon. How many chocolate-covered vanilla creams are needed to : pack 200 boxes of the assortment? : Ans:2400 : 這題題意不太懂>"< 糖果有七種口味放到一個有兩層盒子中每一層盒子有27個 cream 它的口味有vanilla, orange, cherry, vanilla, raspberry, lime, pecan, : cherry, and lemon 問200個box 中有多少 vanilla口味一層總共有 27*(2/9)個vanilla = 6 兩層 = 12 兩百個box 共 2400 : TEST15 : 21. : If 15 workers can pave 18 driveways in 24 days, how many days : would it take 40 workers to pave 22 driveways? : Ans:11 15人 * 24 day = 360 ....總工作量 360 / 18 = 20 平均每一條pave所需的量 40*day/ 22 = 20 day = 11 : 26. : Pat drove from his home to school at 60 miles per hour. : Returning over the same route, there was a lot of traffic, : and he was only able to drive at 40 miles per hour. : If the return trip took 1 hour longer, how many miles did he : drive for the round trip? : Ans:240 d home -----------------------------------school d/60 + 1 = d/40 2d + 120 = 3d d = 120 120*2 = 240 來回大概是這樣解吧 : 麻煩大家了~"~ : 謝謝!!! -- -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 124.219.8.189