GWD-19 Q6. An analyst will recommend a combination of 3 industrial stocks, 2 transportation stocks, and 2 utility stocks. If the analyst can choose from 4 industrial stocks, 4 transportation stocks, and 3 utility stocks, how many different combinations of 7 stocks are possible? Q17. A certain right circular cylinder has a radius of 5 inches. There is a kind of liquid filled in this cylinder to the height of 9 inches. If this liquid is poured completely into a second right cylinder, then the liquid will fill the second cylinder to the height of 4 inches. What is the radius of the second cylinder, in inches? Q20. A retailer bought a machine at a wholesale price of $90 and later on sold it after a 10% discount of the retail price. If the retailer made a profit equivalent to 20% of the wholesale price, what is the retail price of the machine? Q26. How many different 6-letter sequences are there that consist of 1A, 2B's, and 3C's ? Q27. A pharmaceutical company received $3 million in royalties on the first $20 million in sales of the generic equivalent of one of its products and then $9 million in royalties on the next $108 million in sale. By approximately what percent did the ratio of royalties to sales decrease from the $20 million in sales to the next $108 million in sales? Q29. Is the integer n odd? (1) n is divisible by 3. (2) 2n is divisible by twice as many positive integers as n. Q37. A club with a total membership of 30 has formed 3 committees, M,S and R, which have 8, 12, and 5 members, respectively. If no member of committee M is on either of the other 2 committees, what is the greatest possible number of members in the club who are on none of the committees? 拜託大家了 ~真的拜託了Orz 很謝謝大家的幫忙:) --

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