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Hi, Came across this geometry question while taking a Princeton Review test. Seems simple enough however the answer I came up with is not one of the answer choices. Perhaps Im missing something in the language of the question. Will appreciate any help.. Thanks. A Square piece of cloth is trimmed by 4 feet on one edge to for a rectangular piece, which is then cut into half to create 2 triangular sails. If the are of each of the sails in 240 sq.ft, what was the perimeter of the original piece of cloth? 1. 75 2. 88 3. 96 4. 104 5. 576

:) Thanks. that clears it up! I must read more carefully!

Hi, I was not exactly convinced with the explaination in OG11 for this question. It says that statement 2 by itself is sufficient to answer the question. Here is the question and why I thought that 1 & 2 together answer the question. Will appreciate it if someone could point out the error in my logic. Thanks. If the integer n is greater than 1, is n equal to 2? (1) n has exactly 2 positive factors. (2) The difference of any 2 distinct positive factors of n is odd. Ans: n > 1, is n = 2? (1) means n is a prime number. However it could be any prime. Insufficient. (2) if n = 6, 3-2 = 1 Odd. if n = 2, 2-1 = 1 Odd. So this seems Insufficent too. (3) Both together - if n is a prime and difference of any 2 distinct positive factors of n is odd then n has to be 2. Since the difference between distinct positive factors of primes greater than 2 is even. Therefore the answer must be C.

Hey, Came across this question: Possible ways to arrange 3 asians, 2 europeans and an american if the asians and eurpoeans want to sit together. The explaination above seems good, except that one thing confused me a bit: since you consider asiand and europeans as a single entity should you not consider them swapping seats between them. so I seem to think that the answer should be 72 * 2 = 144. Am I missing something here? Thanks! (pls be gentle, first posting on the forum :)