If 0<r<1<s<2,which of the following must be less than 1? I. r/s II. rs III s-r (1) I only, (2) II only, (3) III only, (4) I and II, (5) I and III 有什么好方法解的？ In a certain year, the diff between Mary's and Jim's annual salaries was twice the diff between Mary's and Kate's annual salaries. If Mary's annual salary was the highest of 3 people, what was the average(arithmetic mean) annual salasy of 3 people that year? (1) Jim's annual salary was $30,000 that year (2) Kate's annual salary was $40,000 that year Malik's recipe for 4 servings of a certain dish requires 1.5 cups of pasta. According to this recipe, what is the number of cups of pasta that Malik will use the next time be prepare the dish? (1) the next time he prepare the dish, Malik will make half as many servings as he didi the last time he prepared the dish (2) Malik used 6 cups of pasta the last time he prepared the dish If n is a multipal of 5 and n=p^2q, where p and q are prime numbers, which of following must be a mutipal of 25 1. P^2 2. q^2 3. pq 4. p^2q^2 5. p^3q -- by 会员 rainbabyyezi (2010/10/28 10:34:59)
R/S R最大0.9 S最小1.1后两个同理 | 
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发表于 2010-12-17 11:03:51
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