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Like this PageCLICK this button to recommend this page to Google. GRE Practice TestGRE Practice: Problem Solving GRE Practice Test 1Good you are taking our practice tests. But please make sure you complete all the practice problems from Official GRE Guide. Official GRE Guide is from the test makers(Yes You read it right they conduct the GRE exam worldwide.) ETS.:- The Official Guide to the GRE General Test, Third Edition Powered by GreGuide Version 2.2.1 Copyrights 2007, GreGuide.com Question: 1 What least number should be subtracted from 2590 so that the remainder when divided by 9, 11 and 13 will leave in each case the same remainder 6? Which of the following statements is true? Indicate the corrrect option.
Correct Answer: D Explanation: The remainder will be divisible by the LCM of 9, 11 and 13 LCM = 1287 1287*2=2574 2574+6=2580 2590-2580=10 Hence, the required number is 10 Question: 2 Which is the smallest number by which 19404 should be multiplied to make it a perfect square? Indicate the correct option.
Correct Answer: D Explanation: 19404=2*2*3*3*7*7*11 19404 should be multiplied by 11 to make it a perfect square. Option D is true. Question: 3 If a/b = 1/5 which of the following is equal to (3a+2b)/(3a-2b)? Indicate the correct option.
Correct Answer: D Explanation: (3a+2b)/(3a-2b) = (3a/b+2)/(3a/b-2) = (3*1/5+2)/(3*1/5-2) = (3/5+2)/(3/5-2) = (3+10)/5/(3-10)/5 = 13/-7 =-13/7 Option D is true. Question: 4 Find the next number in the series 12, 17, 23, 30, 38. Indicate the correct option.
Correct Answer: C Explanation: 17-12=5 23-17=6 30-23=7 38-30=8 Hence, consecutive numbers are added in the series. The next number will be 38+9=47 Option C is correct. Question: 5 The price of commodity A is $5800 and it decreases at the rate of $2 per three months. Commodity B costs $4200 and it increases at the rate of $8 per four months. How many years will it take for the two commodities to become equal in price? Indicate the correct option.
Correct Answer: E Explanation: Price reduction of A in one year = 4*2 = 8 Price increase of B after one year = 3*8 = 24 Let the prices of the two commodities be the same after x years 5800-8x=4200+24x 5800-4200=24x+8x 1600=32x x=50 Hence, it shall take 50 years. Option E is correct. Like this PageCLICK this button to recommend this page to Google. Spread The Word / Bookmark this content Digg this Post to del.icio.us Post to Furl Post to Netscape.com
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