## Test your basic knowledge |

# GMAT Quantitative General

**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. gcd(m,n)*lcm(m,n)**

**2. 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?**

**3. Formula for Mixed Group problems (involving Both/Neither)**

**4. Combined Events: Not E = P(not E) = ?**

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

**6. Odd and Even rule.**

**7. How to check whether number is multiple of 9**

**8. Combined Events: E and F**

**9. Simple Interest Formula (remember this is the total amount of money in the bank after the interest is earned)**

**10. Price purchased for by wholesaler**

**11. Gross Profit formula**

**12. How to find all divisors of a number**

**13. How do you multiply roots together.**

**14. 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**

**15. Permutations: Order Matters**

**16. 1/6 = what %**

**17. Work problem rule**

**18. Compound interest formula**

**19. 2nd Rule of Probability: P(E) = 1 - P(not E)**

**20. How many liters of a solution that is 15% salt must be added to 5 liters of a solution that is 8% salt so that the resulting mixture is 10% salt?**

**21. Multiplication principle**

**22. Sum of consecutive numbers**

**23. To determine the number of integers less than 5000 that are evenly divisible by 15...?**

**24. Set Problems formula**

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

**26. Quadratic formula**

**27. x^r/s = ?**

**28. Trial Problems: look at the probability of NOT OCCURRING**

**29. Net**

**30. 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.**

**31. Intersecting Sets**

**32. Properties of 0**

**33. Volume of a sphere**

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

**35. The number of ways independent events can occur together.**

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

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

**38. How to check whether a number is a multiple of 12.**

**39. Compound interest rule**

**40. In general - medium questions require how many steps to solve?**

**41. Gross**

**42. Prime Factorization to find Greatest Common Factor**

**43. (1/4)^2**

**44. Average Rate: Average A per B**

**45. Simple probability**

**46. Dependent events: When are two events said to be dependent events?**

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

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

**49. Since Mieko's average speed was 3/4 of Chan's - her time was 4/3 as long.**

**50. Price sold for by retailer (after markup)**