GRE · Quantitative Reasoning
Arithmetic, Algebra, Geometry and Counting (Set 3)
14 practice questions, each with the answer and an explanation.
Practise Arithmetic, Algebra, Geometry and Counting (Set 3) now
Random questions from this topic, one at a time. You see the answer and the explanation straight after each one.
All 14 questions
- If 3x + 7 = 25, what is the value of x?
- What is 15 percent of 240?
- The average of five numbers is 12. Four of them are 10, 11, 14 and 15. What is the fifth number?
- Two numbers are in the ratio 3 to 5 and their sum is 64. What is the larger number?
- A bag has 4 red marbles and 6 blue marbles. Two marbles are drawn without replacement. What is the probability that both are red?
- A right triangle has legs of length 6 and 8. What is its perimeter?
- A circle has a circumference of 10 pi. What is its area?
- What is the sum of the roots of the equation x squared - 5x + 6 = 0?
- A price rises from 80 dollars to 100 dollars. What is the percent increase?
- 1,000 dollars is invested at 10 percent interest compounded annually. What is the value after two years?
- In how many ways can a committee of 3 people be chosen from 7 people?
- A train travels 180 miles in 3 hours and then 120 miles in 2 hours. What is its average speed for the whole trip?
- If 2 raised to the power (x + 1) equals 32, what is x?
- How many positive divisors does the number 36 have?