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请教两道GA题，多谢！！ [复制链接]

may263263

皮靴族

发表于 2013-3-29 15:58 |显示全部楼层

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本帖最后由 may263263 于 2013-3-29 16:04 编辑

58. Which letter is missing in this series?
H    A    –    P    L    I
A  R
B  S
C  T
D  U
51. In a certain code, TRLGG means
GHOST.
In the same code, what is PUMP
represented by?
A  KENQ
B  KFLQ
C  KENJ
D  KFNJ

Purplelight

金靴族

发表于 2013-3-29 16:09 |显示全部楼层

此文章由 Purplelight 原创或转贴，不代表本站立场和观点，版权归 oursteps.com.au 和作者 Purplelight 所有！转贴必须注明作者、出处和本声明，并保持内容完整

58 D : U

may263263

皮靴族

发表于 2013-3-29 16:15 |显示全部楼层

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Purplelight 发表于 2013-3-29 16:09
58 D : U

对了，请问是怎么算出来的？请教解法！！谢谢

Purplelight

金靴族

发表于 2013-3-29 16:19 |显示全部楼层

51 C

如果对的话，做法随后上

Purplelight

金靴族

发表于 2013-3-29 16:22 |显示全部楼层

58. I is 3 letters away from L, L is 4 letters away from P, therefore we can guess that the letter we require is 5 letters away from P. U is the letter that is 5 away from P. We can test it by examining the rest of the letters. A should be 6 letters away from U. It is. Finally, H is 7 letters away from A, confirming the answer as U.

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风吹麦浪

simonlee

铜靴族

发表于 2013-3-29 16:35 |显示全部楼层

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第二题。选b

Purplelight

金靴族

发表于 2013-3-29 16:44 |显示全部楼层

孩子喜欢教人，但是比较啰嗦，呵呵，凑合看吧

51＃

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Here we see that G is the 7th letter of the alphabet. T, it’s corresponding letter in code, is the 7th letter from the end of the alphabet. Similarly H is the 8th letter of the alphabet while R, this time, is 9th letter from the end of the alphabet. O is the 15th letter of the alphabet and L is the 15th from the end of the alphabet. S is the 19th letter of the alphabet and G is the 20th letter from the end of the alphabet. T is the 20th letter of the alphabet and G is the 20th letter from the end of the alphabet.

Now, we can assume that the code works like this, for the 1st 3rd 5th etc. number, the code is like this:

A  B  C  D  E  F  G H  I J K L  M N  O  P Q R S T U V W X Y Z
Z  Y  X  W  V  U  T  S  R  Q  P  O  N  M  L  K  J  I  H  G  F  E  D  C  B  A

Therefore, the first P and the M in PUMP, become a K and N.

Then, we see that  for the 2nd 4th 6th etc. letters, they follow this code:

A  B  C  D  E  F  G H  I J K L  M N  O  P Q R  S  T  U V  W X Y Z
Y  X  W  V  U  T  S  R  Q  P  O  N  M  L  K  J  I  H  G  F  E  D  C  B  A Z

Here we learn that the U and second P become E and J respectively.

Therefore PUMP becomes KENJ