If 2x + 5 = 11, what is the value of x?
First, isolate the term with x by subtracting 5 from both sides.
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Correct!
Wrong!
Solve for x.
A recipe calls for 2 cups of flour to make 12 cookies. How many cups of flour are needed to make 30 cookies?
Set up a proportion: (cups of flour) / (number of cookies).
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Correct!
Wrong!
Calculate the required cups of flour.
What is 15% of 200?
Convert the percentage to a decimal (15% = 0.15) and multiply by 200.
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Correct!
Wrong!
Calculate the value.
The sum of three consecutive integers is 48. What is the largest of these integers?
Let the integers be x, x+1, and x+2. Their sum is 3x+3.
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Correct!
Wrong!
Find the largest integer.
A train travels 180 kilometers in 2 hours. What is its average speed in kilometers per hour?
Speed = Distance / Time.
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Correct!
Wrong!
Calculate the average speed.
If the area of a square is 64 square units, what is the length of one side of the square?
Area of a square = side * side (s²).
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Correct!
Wrong!
Find the side length.
Simplify: 3(x + 2y) - 2(x - y)
Distribute the numbers outside the parentheses first, then combine like terms.
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Correct!
Wrong!
Simplify the algebraic expression.
A bag contains 3 red marbles and 5 blue marbles. If one marble is drawn at random, what is the probability that it is red?
Probability = (Number of favorable outcomes) / (Total number of possible outcomes).
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Correct!
Wrong!
Calculate the probability.
If y = x^2 - 1 and x = 3, what is the value of y?
Substitute the value of x into the equation for y.
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Correct!
Wrong!
Calculate the value of y.
The angles of a triangle are in the ratio 1:2:3. What is the measure of the largest angle in degrees?
Let the angles be x, 2x, and 3x. The sum of angles in a triangle is 180 degrees.
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Correct!
Wrong!
Find the measure of the largest angle.
GRE Problem Solving (Single Answer) Practice Quiz 1
Problem Solving Pro!
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Mathlete in Training!
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Calculation Check-up!
Review fundamental concepts and practice applying them to problems.
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