[計量] 請教兩題計量
How many bits of computer memory will be required to store the integer x,
where x=-(√810,000), if each digit requires 4 bits of memory and the
sign of x requires 1 bit?
(A) 25 , (B) 24 , (C) 17 , (D) 13 , (E) 12
答案是 (D)
想請問，照字面的意思答案沒錯，但是儲存以後不就變 x=900 ?
但是 x=-900 才對阿，還是說就不管它??
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In a nationwide poll, N people were interviewed. If 1/4 of them answered
"yes" to question 1, and of those, 1/3 answered "yes" to question 2,
which of the following expressions represents the number of people
interviewed who did not answer "yes" to both questions?
￣
(A) N/7 , (B) 6N/7 , (C) 5N/12 , (D) 7N/12 , (E) 11N/12
答案是 (E)
這題我有疑問的是 who did not answer "yes" to both questions?
￣
照答案來看是問，多少人沒有兩題都答 "yes"
請問這行字能否翻成，這兩題有多少人沒有回答 "yes"?? 這樣的話答案就是 3N/4
謝謝大家
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12/17 16:15, , 1F
12/17 16:15, 1F
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12/17 17:25, , 2F
12/17 17:25, 2F
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12/18 08:49, , 3F
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12/21 14:05, 5F
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