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GRE Math: Common Errors

Subjects : gre, math
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. 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?






2. What is the third quartile of the following data set: 44 - 58 - 63 - 63 - 68 - 70 - 82






3. Which quadrant is the lower left hand?






4. What is the absolute value function?






5. What is a chord of a circle?






6. In a triangle inscribed inside a circle - where the diameter is one side of the triangle - which angle is largest?






7. 200 <_ x <_ 300. How many values of x are divisible by 5 & 8?






8. The number of degrees in the largest angle of a triangle inscribed in a circle - in which the diameter of the circle is one side of the triangle.






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






10. 30< all primes<40






11. Hector invested $6000. Part was invested in account with 9% simple annual interest - and the rest in account with 7% simple annual interest. If he earned $490 in the first year of these investments - how much did he invest in each account?






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






13. In a regular polygon with n sides - the formula for the sum of interior angles






14. Max and Min lengths for a side of a triangle?






15. 6w^2 - w - 15 = 0






16. What is a parabola?






17. Circumference of a circle?






18. What is the slope of a horizontal line?






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






20. 5/8 in percent?






21. The objects in a set are called two names:






22. What are the real numbers?






23. sqrt 2(sqrt 6)=






24. (x^2)^4






25. Surface area for a cylinder?






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






27. 5x^2 - 35x -55 = 0






28. The ratio of the areas of two similar polygons is ...






29. What is an isoceles triangle?






30. 40 < all primes<50






31. What is an exterior angle?






32. Is 0 even or odd?






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






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






35. Which quadrant is the upper right hand?






36. What are the members or elements of a set?






37. How many digits are there between the decimal point and the first even digit in the decimal equivalent of 1/[(2^8)(5^3)]






38. What is a minor arc?

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39. 1/2 divided by 3/7 is the same as






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






41. What is the area of a regular hexagon with side 6?






42. What are the smallest three prime numbers greater than 65?






43. Formula for the area of a sector of a circle?






44. What is the ratio of the surface area of a cube with an edge of 10 to the surface area of a rectangular solid with dimensions 2 - 4 - and 6?






45. Formula to calculate arc length?






46. Number of degrees in a triangle






47. What is the coefficient of the x^2 term in the product of (x + 1)(x + 2)(x -1)?






48. What is the name for a grouping of the members within a set based on a shared characteristic?






49. A triangle is inscribed in a semi circle with legs 5 and 12. What is the circumfermence of the semicircle?






50. What is the empty set?