Re: [計量] BB TEST12 section4 NO.29 TEST18 sect …
※ 引述《Anlorus ()》之銘言:
: 有兩題計量想請教大家,謝謝!
: TEST 12 section4
: 30. Each of the following numbers has two digits blotted out.
: Which of the numbers could be the number of hours in x days,
: where x is an integer?
: (A) 25_,_06
: (B) 50_,_26
: (C) 26_,_02
: (D) 62_,_50
: (E) 65_,_20
選項必須是24的倍數 也就是其因數會有3和4
(1)是否為三的倍數之檢驗方法: 所有位數之數字總合為三的倍數
(2)是否為四的倍數之檢驗方法: 最後兩位(十位和個位)為四的倍數
所以其實用(2)就可以知道答案了
: TEST 18 section 1
: 29. A board of length L feet is cut into two pieces that the length
: of one piece is 1 foot more that the length of the other piece. Which of
: the follow is the length, in feet, of the longer piece?
: (A) L+2/2
: (B) 2L+1/2
: (C) L-1/3
: (D) 2L+3/3
: (E) 2L+1/3
: 第一題 答案為 (E)
: 第二題 答案為 (E)
請問這題有圖嗎 我花很多時間還是不太確定其形狀
還有它的length是指只有"長度"還是"全長"?
(一般周長是用circumference)
sorry 我解不出來
先降吧
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