If a/3 = 6, what is the value of 2a - 5?
First, find the value of 'a'. Then substitute it into the expression.
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Correct!
Wrong!
Solve for the expression.
A bookstore sold 80 books on Monday and 120 books on Tuesday. What was the average number of books sold per day over these two days?
Average = (Total books sold) / (Number of days).
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Correct!
Wrong!
Calculate the average.
If a shirt costs 25 after a 20% discount, what was the original price of the shirt?
If there was a 20% discount, the sale price is 80% of the original price. Let O be original price, then 0.80 * O = 25.
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Correct!
Wrong!
Calculate the original price.
What is the perimeter of a rectangle with length 8 cm and width 5 cm?
Perimeter of a rectangle = 2 × (length + width).
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Correct!
Wrong!
Calculate the perimeter in cm.
If 3^{(x+1)} = 81, what is the value of x?
Express 81 as a power of 3 (81 = 3^4). Then equate the exponents.
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Wrong!
Solve for x.
The ratio of boys to girls in a class is 3:4. If there are 12 boys, how many girls are in the class?
Set up the ratio: (boys/girls) = 3/4. If boys = 12, then 12/girls = 3/4.
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Correct!
Wrong!
Calculate the number of girls.
What is the next number in the sequence: 2, 5, 10, 17, 26, ...?
Look at the differences between consecutive terms (3, 5, 7, 9...). The differences are increasing odd numbers.
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Correct!
Wrong!
Find the next number in the sequence.
If a circle has a circumference of 16pi, what is its radius?
Circumference = 2pi r.
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Correct!
Wrong!
Calculate the radius.
A worker earns 15 per hour. If she works 8 hours a day for 5 days, what are her total earnings for the week?
Total earnings = (hourly rate) × (hours per day) × (number of days).
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Correct!
Wrong!
Calculate the total earnings.
GRE Problem Solving (Single Answer) Practice Quiz 2
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