作者a2515125 (Bobshih)
看板GMAT
標題[計量] PP1 DS請教
時間Mon Sep 7 17:32:50 2009
How many odd integers are greater than the integer x and
less than the integer y ?
(1) There are 12 even integers greater than x and less than y.
(2) There are 24 integers greater than x and less than y.
--------------------------------------------------------------------------------------------------------------------------------------------------------【答案】B
【思路】
(1) 不知道有幾個數是介於x,y. 有可能奇數比偶數多1或少1
(2) 有一半是奇數
answer: B
我想請問根據B答案的解釋 他說24個整數 有一半為奇數
但是題目好像也沒指明 這24個數是不是CONSECUTIVE INTEGERS
請問這樣怎麼判斷
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