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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. What is the slope of a vertical line?


2. How to find the circumference of a circle which circumscribes a square?






3. Length of an arc of a circle?






4. Legs 6 - 8. Hypotenuse?






5. Formula of rectangle where l increases by 20% and w decreases by 20%






6. Ratio of ages of Anna and Emma is 3:5 and of Emma and Nicolas is 3:5. What is the ratio of Anna to Nicholas' ages?






7. What is the 'Range' of a series of numbers?






8. What is a set with no members called?






9. 6w^2 - w - 15 = 0






10. What is the side length of an equilateral triangle with altitude 6?






11. 1/2 divided by 3/7 is the same as






12. Formula for the area of a circle?






13. How many 3-digit positive integers are even and do not contain the digit 4?






14. Which quandrant is the lower right hand?






15. 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?






16. What are the roots of the quadrinomial x^2 + 2x + 1?






17. 5 bakeries sell an average of 300 muffins per bakery per day. If 2 stop making muffins but the total muffins sold stays the same - what is the average of muffins per bakery sold among the remaining?






18. What is a minor arc?


19. There are 10 finalists for the school spelling bee. A first - second - and third place trophy will be awarded. How many different people can get the three prizes?






20. What does the graph x^2 + y^2 = 64 look like?






21. When the 'a' in a parabola is positive....






22. Area of a triangle?






23. 25^(1/2) or sqrt. 25 =






24. Nine coins are tossed simultaneously. In how many of the outcomes will the fourth coin tossed show heads?






25. 50 < all primes< 60






26. What is a tangent?






27. What is the ratio of the sides of an isosceles right triangle?






28. 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?






29. What is a piecewise equation?






30. P and r are factors of 100. What is greater - pr or 100?






31. Formula to calculate arc length?






32. x^(-y)=






33. Find the surface area of a cylinder with radius 3 and height 12.






34. (a^-1)/a^5






35. To convert a percent to a fraction....






36. Evaluate 4/11 + 11/12






37. Define a 'Term' -






38. 5/6 in percent?






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






40. a^0 =






41. What is the 'Solution' for a system of linear equations?






42. Volume for a cylinder?






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






44. Simplify 4sqrt21 X 5sqrt2 / 10sqrt7






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






46. What is the 'domain' of a function?






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






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






49. T or F? Given d -e &f =/ 0 - [(d^3)e(f^5)] / 2d(e^3) / [3(d^2)(e^3)(f^7)] / [6(e^5)(f^2)]?






50. What are the real numbers?