Yale's progress sounds pretty promising! Just did a few GWD this past week and realized that need more review for SC. Will do so this weekend. Also, I will need to review RC. Three weeks to go! Keep up!
Yale's progress sounds pretty promising! Just did a few GWD this past week and realized that need more review for SC. Will do so this weekend. Also, I will need to review RC. Three weeks to go! Keep up!
发现这上面都不怎么问问题呢 就我一个人问~~~ 好吧 又来了 刚做了GWD的数学 发现真的要难呀 比OG12的都复杂好多 有一下两题 做不来 Q14: If 1050 – 74 is written as an integer in base 10 notation, what is the sum of the digits in that integer?
A. 424 B. 433 C. 440 D. 449 E. 467 Q25: A photographer will arrange 6 people of 6 different heights for photograph by placing them in two rows of three so that each person in the first row is standing in front of someone in the second row. The heights of the people within each row must increase from left to right, and each person in the second row must be taller than the person standing in front of him or her. How many such arrangements of the 6 people are possible?
还有个 我觉得答案错了 大家看下呢 应该选什么 Q30: Joanna bought only $0.15 stamps and $0.29 stamps. How many $0.15 stamps did she buy? (1) She bought $4.40 worth of stamps. (2) She bought an equal number of $0.15 stamps and $0.29 stamps.
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient. C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient. D. EACH statement ALONE is sufficient. E. Statements (1) and (2) TOGETHER are NOT sufficient
q30 should be A. Right? The problem is 15x+29y=440 The rule for a number to be divided by 15 should be the number is both divided by 5 and by 3. So 440-29y should ended by 0 or 5 to be divided by 5. Therefore, y can only be 5 or 10 or 15. It is easy to test 5 and 15 are wrong. So y can only be 10.
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发表于 2009-12-19 12:58:13
