## Test your basic knowledge |

# GRE Math: Common Errors

**Instructions:**

- Answer 50 questions in 15 minutes.
- If you are not ready to take this test, you can study here.
- Match each statement with the correct term.
- Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

**1. What is the slope of a vertical line?**

**2. What are 'Supplementary angles?'**

**3. Legs 5 - 12. Hypotenuse?**

**4. A company places a 6-symbol code on each product. The code consists of the letter T - followed by 3 numerical digits - and then 2 consonants (Y is a conson). How many codes are possible?**

**5. Which is greater? 64^5 or 16^8**

**6. What is the slope of a horizontal line?**

**7. Pi is a ratio of what to what?**

**8. Simplify the expression [(b^2 - c^2) / (b - c)]**

**9. Evaluate 4/11 + 11/12**

**10. 25^(1/2) or sqrt. 25 =**

**11. What is a parabola?**

**12. The ratio of the areas of two similar polygons is ...**

**13. Suppose that the graph of f(x) is the result of sliding the graph of y=2x^2 down 3 units of spaces. What is the new equation?**

**14. (12sqrt15) / (2sqrt5) =**

**15. What is the 'Range' of a series of numbers?**

**16. Which quandrant is the lower right hand?**

**17. What is the set of elements found in both A and B?**

**18. A cylinder has a surface area of 22pi. If the cylinder has a height of 10 - what is the radius?**

**19. 50 < all primes< 60**

**20. How to find the area of a sector?**

**21. 20<all primes<30**

**22. a^2 - b^2**

**23. (-1)^3 =**

**24. The objects in a set are called two names:**

**25. What is an isoceles triangle?**

**26. x^2 = 9. What is the value of x?**

**27. To multiply a number by 10^x**

**28. What is the ratio of the sides of a 30-60-90 triangle?**

**29. What is it called when a point is reflected to the quadrant opposite it (i.e. I to III or II to IV)?**

**30. What is the formula for compounded interest?**

**31. 1:sqrt3:2 is the ratio of the sides of what kind of triangle?**

**32. 10^6 has how many zeroes?**

**33. (6sqrt3) x (2sqrt5) =**

**34. What is the graph of f(x) shifted upward c units or spaces?**

**35. What is the surface area of a cylinder with radius 5 and height 8?**

**36. What is the graph of f(x) shifted left c units or spaces?**

**37. 5/8 in percent?**

**38. Evaluate (4^3)^2**

**39. a^2 - 2ab + b^2**

**40. What is the intersection of A and B?**

**41. If 8 schools are in a conference - how many games are played if each team plays each other exactly once?**

**42. Can the input value of a function have more than one output value (i.e. x: y - y1)?**

**43. In a triangle where the two legs are 4 and 3 - what is the value of a line directly intersecting the middle coming from the meeting point of the two legs?**

**44. If the two sides of a triangle are unequal then the longer side...**

**45. Employee X is paid 19.50 per hour no matter how many a week. Employee Y earns 18 for the first 40 and 1.5 the hourly wage for every hour after that. If both earned the same amount and worked the same in one week - how many did each work?**

**46. 413.03 x 10^(-4) =**

**47. Legs: 3 - 4. Hypotenuse?**

**48. Max and Min lengths for a side of a triangle?**

**49. The four angles around a point measure y - 2y - 35 and 55 respectively. What is the value of y?**

**50. Whats the difference between factors and multiples?**