Some questions from GMATPrep help plz - urgent test in 5 day

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1> According to directions on a frozen orange juice concentrate, 1 can of concentrate is to be mixed with 3 cans of water to make orange juice. How many 12 ounce cans of the concentrate are required to prepare 200 6 ounce servings of orange juice

a. 25 b.34 c.50 d.67 e.100

2> In xy plane at what two points does the graph of y=(X+a)(X+b) intersect the x axis

1> a+b=-1
2> The graph intersects the y axis at (0,-6). DS question.

3> An investment of d dollars at k percent simple annual interest yields $600 over a 2 year period. in ters of d, what dollar amount invested at the same rate will yield $2400 interest over 3 year period?

a. 2d/3 b. 3d/4 c. 4d/3 d. 3d/2 e. 8d/3

4> The number of stamps that Kayo and Alberto had were in the ration 5:3, respectively. After Kayo gave Alberto 10 of her stamps, the ratio of the number Kaye had to the number Alberto had was 7:5. As a result of this gift, kayo had how many more stamps than alberto.

a. 20 b.30 c.40 d. 60 and e. 90 (Please help me form an equation)
Source: — Problem Solving |

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by DanaJ » Sun Apr 19, 2009 1:12 pm
All of your questions have been answered many times before. My advice is to search for key words before posting: the GMAT prep questions are answered most frequently and I bet you'll get a ton of explanations after "punching in" some key words.
Best of luck!

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by vittalgmat » Sun Apr 19, 2009 5:59 pm
Apart from Dana's reply, here are a few more I wish to add, considering that your are relatively new to this forum

1. Post 1 question per post so that everybody can discuss better.
2. Post the answers using Spoiler.
ie click on spoiler, type the answer eg. OA: C, click on spoiler again.