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Test: Algebra - GMAT MCQ


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10 Questions MCQ Test - Test: Algebra

Test: Algebra for GMAT 2025 is part of GMAT preparation. The Test: Algebra questions and answers have been prepared according to the GMAT exam syllabus.The Test: Algebra MCQs are made for GMAT 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Algebra below.
Solutions of Test: Algebra questions in English are available as part of our course for GMAT & Test: Algebra solutions in Hindi for GMAT course. Download more important topics, notes, lectures and mock test series for GMAT Exam by signing up for free. Attempt Test: Algebra | 10 questions in 20 minutes | Mock test for GMAT preparation | Free important questions MCQ to study for GMAT Exam | Download free PDF with solutions
Test: Algebra - Question 1
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What is the value of (ab)(b−a)?

1) b − a = 8
2) 5a = −19 + 2b

Test: Algebra - Question 2
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What is the value of n ?

(1) n2 = 1
(2) n3 = 1

Detailed Solution for Test: Algebra - Question 2

To determine the value of n, we need to analyze each statement individually and then together if necessary.

Statement (1): n2 = 1

This equation can be solved as follows: n2 = 1 Taking the square root of both sides, we get: n = plus or minus 1 So, n can be either 1 or -1. This means that statement (1) alone is not sufficient to determine a unique value for n.

Statement (2): n3 = 1

This equation can be solved as follows: n3 = 1 The only real number solution to this equation is: n = 1 So, statement (2) alone is sufficient to determine that n = 1.

Conclusion

Since statement (2) alone is sufficient to determine the value of n, but statement (1) alone is not, the correct answer is:

b) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.

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Test: Algebra - Question 3
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What is the value of the greater of two numbers if one of the numbers is twice the other number?

(1) One number is 5.
(2) The sum of the two numbers is 15.

Test: Algebra - Question 4
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What is the value of a + b ?

(1) (a + b)2 = 4
(2) a = 2 − b
Test: Algebra - Question 5
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If x + y = 3, what is the value of xy?

(1) x and y are integers
(2) x and y are positive
Test: Algebra - Question 6
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If t ≠ 0, is r greater than zero?

(1) rt = 12
(2) r + t = 7
Test: Algebra - Question 7
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What is the average (arithmetic mean) of a, b, and c ?

(1) a + 2b + 3c = 10
(2) 3a + 2b + c = 14
Test: Algebra - Question 8
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What is the value of x?

(1) 4x2 – 4x + 1 = 0
(2) 4x2 – 1 = 0
Test: Algebra - Question 9
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Joan spent $10 to buy at least one piece each of apples and oranges at a store where each apple cost $2 and each orange cost $1. How many apples did she buy?

(1) She spent more than $6 on buying oranges
(2) She spent less than $10 on buying oranges
Test: Algebra - Question 10
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If x = 3a and y − x = 4a, then what is the value of y ?

(1) x = 12
(2) y − x = 16
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