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GMAT Quantitative General

Subjects : gmat, 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. (1/4)^2






2. 2n+1 - 2n+3 - 2n+5






3. The average of 5 numbers is 2. After one number is deleted - the new average is -3. What number was deleted?






4. gcd(m,n)






5. How to check whether a number is a multiple of 4.






6. The number of ways independent events can occur together.






7. To determine multiple-event probability where each individual event must occur in a certain way.






8. What to do with equations that have fractions






9. How many liters of a solution that is 10% alcohol by volume must be added to 2 liters of a solution that is 50% alcohol by volume to create a solution that is 15% alcohol by volume?






10. Number added or deleted






11. 4th rule of Probability






12. Average Rate: Average speed






13. Number of integers from A to B inclusive = B - A + 1 - How many consecutive integers are there from 73 through 419 - inclusive?






14. Inscribed Angle - Minor Arc






15. Sum of consecutive numbers






16. When you see an equation in factored form in a question?






17. Some GMAT word problems involve groups with distinct 'either/or' categories (male/female - blue collar/white collar - etc.) The key is to do what with the information? 1. Find total number of possible outcomes. 2. Find the number of desired outcomes.






18. How to check for a prime number.


19. How to check whether a number is a multiple of 3.






20. Price sold for by retailer (after markup)






21. Simple Interest formula (remember this is only the interest earned - not the total amount of money present in the bank after interest earned)






22. Circular permutation: The number of ways to arrange n distinct objects along a fixed circle is?






23. Compound interest rule






24. Quadratic formula






25. Properties of 0






26. Sq. rt(3)






27. What does the Sum of the angles in a Regular Polygon formula look like?






28. Intersecting Sets






29. Percent Formula






30. Set Problems formula






31. The average of consecutive numbers






32. 45-45-90 triangle basic lengths of sides






33. If $10 -000 is invested at 10% annual interest - compounded semi-annually - what is the balance after 1 year?






34. Think of averages as what? The average of 3 - 4 - 5 - and x is 5. What is x? 3 is 2 less than 5 4 is 1 less than 5 - 5 is the average - x = 5 + 3 = 8






35. Sq. rt(2)






36. Odd Factors






37. 3^3 x 4^3 = ?






38. If you have to guess in a problem - which ones should you guess? Especially if you have to plug numbers.






39. Volume of a sphere






40. Indistinguishable events how to find the number of permutations


41. Permutations: Order Matters






42. In general - difficult questions require how many steps to solve?






43. Multiples of 3






44. 2nd Rule of Probability: P(E) = 1 - P(not E)






45. How do you multiply roots together.






46. Three triangle length patterns






47. Always try to factor






48. 1. A and B < A or B 2. A or B > Individual probabilities of A - B 3. P(A and B) = P(A) x P(B) <-- 'fewer options' 4. P(A or B) = P(A) + P(B) <-- 'more options' - Probability of multiple events rules.






49. 3rd Rule of Probability: Conditional Probability






50. Lowest Common Multiple 60: 2 x 2 x 3 x 5 - 72: 2 x 2 x 2 x 3 x 3 - LCM: 2 x 2 x 2 x 3 x 3 x 5