[計量] Eight light bulbs numbered ...

看板GRE (GRE入學考試)作者kb8526 (韋玉齋道主)時間17年前 (2008/11/11 01:19)推噓0(0推 0噓 0→)

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1. 1 8 2 7 3 6 4 5 Eight light bulbs numbered 1 through 8 are arranged in a circle as chown above. The bulbs are wired so that every third bulb, counting in a clockwise direction, flashes until all bulbs have flashed once. If the bulb numbered 1 flashes first, which numbered bulb will flashed last? (A)2 (B)3 (C)4 (D)6 (E)7 ANS: D 2. A telephone company offers a special service to customers who make long-distance calls. For an additional monthly charge of $8, all long-distance charges in excess of $16 for a month are reduced by 50%. If a customer has long-distance charges of $48 for one month without the special service, how much would the customer have served by using the special service? (A)$0 (B)$8 (C)$16 (D)$20 (E)$32 3. Bill's car average 15 miles to a gallon of gasoline. He can drive the 24-mile round trip to and from work and pay a toll of $o.40 each way, or he can take mass transit at $1.40 each way. If only the cost of gasoline and tolls is considered, at what price per gallon of gasoline is the cost of driving equal to the cost of taking mass transit? (A)$0.80 (B)$1.12 (C)1.25 (D)1.40 (E)1.80 @@ 13號要考試了我發現只要遇到這種很臭長的一定死…煩耶!!!!!! 我作來欣的模考好像沒有很多很臭長的題目啊…@@ 怎麼徐老師另外發的講義和cat那兩本都是這種的…@@ 又聽說機考比較難是不是機考很多這種長題啊????? 此外機考排列組合的題目多嗎?? 作模考好像沒什麼看到所以一直沒有理它……orz 謝謝謝謝!!!!! -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 218.167.71.201