Mathematics Mcqs

3.14 X 106 is equal to:

A. A. 314
B. B. 3140
C. C. 314000
D. D. None of these (3140000)
Correct answer is: D. D. None of these (3140000)

P is 6 times greater than Q then by what percent is Q smaller than P?

A. A. 84%
B. B. 85.50%
C. C. 80%
D. D. None of these (83.33%)
Correct answer is: D. D. None of these (83.33%)

The sum of the squares of two positive integers is 100 and the difference between their square is 28. The sum of the numbers is>

A. A. 10
B. B. 12
C. C. 14
D. D. None of these
Correct answer is: C. C. 14

There are twice as many boys as there are girls If 30% of the boys and 45%of the girls failed in the exams then what percentage of the class passed the exams?

A. A. 35%
B. B. 40%
C. C. 52%
D. D. None of these
Correct answer is: D. D. None of these

A can do a piece of work in 4 hours; B and C together can do it in 3 hours, while A and C together can do it in 2 hours B atone for doing in:

A. A. 8 hours
B. B. 10 hours
C. C. 12 hours
D. D. None of these
Correct answer is: C. C. 12 hours

If a > b and b > a then?

A. A. a=b
B. B. A not equal to b
C. C. Cannot be evaluated
D. D. None of these
Correct answer is: C. C. Cannot be evaluated

If Amna is x years old then 5 times Amna’s age three years ago is:

A. A. 3(x – 5)
B. B. 5(x – 3)
C. C. 3(x + 5)
D. D. None of these
Correct answer is: B. B. 5(x – 3)
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Evaluate the expression: 27 / 32 + 4: 2 – 1

A. A. 0
B. B. 12
C. C. 10
D. D. None of these
Correct answer is: C. C. 10

A sequence is called Arithmetic if it has:

A. A. Addition
B. B. Common difference
C. C. Common ratio
D. D. None of these
Correct answer is: B. B. Common difference
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<p><strong>A sequence is arithmetic if the </strong><strong>common difference</strong><strong> of all terms of a sequence is the same.</strong></p>
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<p><strong>A sequence is </strong><strong>geometric</strong><strong> if the common ratio of all terms of sequence is the same.</strong></p>
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<p><strong>A common difference is the difference between consecutive numbers in an arithmetic sequence</strong></p>
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Arithmetic mean between x -3 and x + 3 is:

A. A. -6
B. B. 6
C. C. x
D. D. None of these
Correct answer is: C. C. x
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<p>The arithmetic mean between any two numbers is simply the average of those two numbers.</p>
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<p>In this case, the two numbers are x - 3 and x + 3.</p>
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<p>Therefore, the arithmetic mean between x - 3 and x + 3 is:</p>
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<p>(x - 3 + x + 3) / 2</p>
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<p>Simplifying the equation:</p>
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<p>2x / 2</p>
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<p>This cancels out the 2s, leaving us with:</p>
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<p>x</p>
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<p>So, the arithmetic mean between x - 3 and x + 3 is simply <strong>x</strong>.</p>
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