[計量] 好多題計量請教

看板GRE作者balance9235 (退伍變米蟲)時間15年前 (2011/01/21 19:42)推噓3(3推 0噓 15→)

留言18則, 4人參與討論串18/26 (看更多)

1. Column A Column B The sum of the units digit of all the 25 possible squre of integers. ANS:A 2. △ABC is an isosceles triangle with two sides of 4 and 8. Column A Column B The perimeter of △ABC. 16 ANS:A 不是可能是16或20嗎? 3. How many sides does a polygon have if the measure of each interior angle is 8 times the measure of each exterior angle? (A) 8 (B) 9 (C) 10 (D) 12 (E) 18 4. Column A Column B The perimeter of a 28 rectangle whose area is 50. ANS:A 5. Three identical tennis balls fit sungly into a cylinderical can: the radius of the ball equals the radius od the can, and the balls just touch the bottom and the top of the can. If the formula for the volume of a sphere is V = (4r^3π)/3, what fraction of the volume of the can is NOT taken by the balls? (A) 7/9 (B) 1/6 (C) 1/3 (D) 2/3 (E) 3/4 ANS:(C) 最後的問句意思不太懂 6. A wooden cube with edge of 4 inchs is painted red. The cube is then cut into 64 small cubes with edges of 1 inch. Column A Column B The number of small The number of small cubes that have exactly cubes that have no three red faces. red faces. ANS:C 我算8跟9 7. A number is a palindrome if it reads exactly the same drom right to left as it does from left to right. For example, 959 and 23132 are palindromes. Column A Column B The probability that a 1/10 three-digit number chosen at random is a palindrome. ANS:C 我列9*9/9*10*10 8. The price of a certain product increased p% from 1970 to 1980. If the price were decreased by r%, the final price would be the same as it was in 1970. Column A Column B p r ANS:A 9. A school group chaters three indentical buses and occupied 4/5 od the seats. After 1/4 of the passengers leave, the remaining passengers use only two of the buses. Column A Column B The fraction of the 9/10 seats on the two buses that are occupied. ANS:C 10. One side of a triangle has length 6 and a second side has length 7. Which of the following could be the area of this triangle? Ⅰ.13 Ⅱ.21 Ⅲ.24 (A) Ⅰ only (B) Ⅱ only (C) Ⅲ only (D) Ⅰ and Ⅱ only (E) Ⅰ, Ⅱ, and Ⅲ ANS:(E) 只算的出來最簡單的Ⅱ 11. A jar contain 5 marbles, each of whose colors is red, white, blue, green and yellow. If 4 marbles are drawn from the jar, what is the probability that the yellow one is removed? (A) 1 (B) 1/20 (C) 1/5 (D) 1/4 (E) 4/5 ANS:(E) 是問，取4顆，沒拿到黃色的機會嗎? 今天連昨天的題目，請教大家！謝謝！ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 124.8.144.205

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longer100

01/21 20:04, , 1^F

01/21 20:04, 1^F

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s01136129

01/21 21:15, , 2^F

01/21 21:15, 2^F

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s01136129

01/21 21:18, , 3^F

01/21 21:18, 3^F