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Class 7 Maths Chapter 9 MCQ With Answers
Maths Class 7 Chapter 9 MCQs On Rational Numbers
Question 1.
The numerator of the rational number \(\frac { 3 }{ 5 } \) is
(a) 3
(b) 5
(c) 2
(d) 8
Answer
Answer: (a) 3
Question 2.
The numerator of the rational number \(\frac { 1 }{ 100 } \) is
(a) 100
(b) 1
(c) 10
(d) 99
Answer
Answer: (b) 1
Question 3.
The denominator of the rational number \(\frac { 4 }{ 7 } \) is
(a) 7
(b) 4
(c) 3
(d) 11
Answer
Answer: (a) 7
Free Rational Expressions Calculator is used to solve a rational expression.
Question 4.
The denominator of the rational number \(\frac { 7 }{ 13 } \) is
(a) 13
(b) 7
(c) 6
(d) 91
Answer
Answer: (a) 13
Question 5.
The numerator of the rational number \(\frac { -3 }{ 4 } \) is
(a) -3
(b) 3
(c) 4
(d) -4
Answer
Answer: (a) -3
Question 6.
The numerator of the rational number \(\frac { -2 }{ 9 } \) is
(a) -2
(b) 2
(c) -9
(d) 9
Answer
Answer: (a) -2
Question 7.
The denominator of the rational number \(\frac { 5 }{ -3 } \) is
(a) 5
(b) -3
(c) 3
(d) 8
Answer
Answer: (b) -3
Question 8.
The denominator of the rational number \(\frac { 3 }{ -7 } \) is
(a) 7
(b) -7
(c) 3
(d) -3
Answer
Answer: (b) -7
Question 9.
The numerator of the rational number \(\frac { -2 }{ -5 } \) is
(a) 2
(b) -2
(c) 5
(d) -5
Answer
Answer: (b) -2
Question 10.
the numerator of the rational number \(\frac { -5 }{ -3 } \) is
(a) -5
(b) 5
(c) -3
(d) 3
Answer
Answer: (a) -5
Question 11.
The denominator of the rational number \(\frac { -2 }{ -9 } \) is
(a) -2
(b) 2
(c) 9
(d) -9
Answer
Answer: (d) -9
Question 12.
The denominator of the rational number \(\frac { -6 }{ -5 } \) is
(a) 6
(b) -6
(c) 5
(d) -5
Answer
Answer: (d) -5
Question 13.
The denominator of the rational number \(\frac { -13 }{ -11 } \) is
(a) -13
(b) 13
(c) 11
(d) -11
Answer
Answer: (d) -11
Question 14.
The numerator of the rational number 0 is
(a) 0
(b) 1
(c) 2
(d) 3
Answer
Answer: (a) 0
Question 15.
The denominator of the rational number 0 is
(a) 0
(b) 1
(c) -1
(d) any non-zero integer
Answer
Answer: (d) -1
Question 16.
The numerator of a rational number 8 is
(a) 2
(b) 4
(c) 6
(d) 8
Answer
Answer: (d) 8
Question 17.
The denominator of the rational number 8 is
(a) 8
(b) 2
(c) 4
(d) 1
Answer
Answer: (d) 1
Question 18.
The numerator of the rational number – 9 is
(a) -9
(b) 9
(c) 1
(d) -1
Answer
Answer: (a) -9
Question 19.
The denominator of the rational number – 9 is
(a) -9
(b) 9
(c) -1
(d) 1
Answer
Answer: (d) 1
Question 20.
If \(\frac { 3 }{ 4 } \) = \(\frac { ? }{ 12 } \), then ? =
(a) 3
(b) 6
(c) 9
(d) 12
Answer
Answer: (c) 9
Hint:
\(\frac{3}{4}\) = \(\frac{3×3}{4×3}\) = \(\frac{9}{12}\)
Question 21.
if \(\frac { 4 }{ 5 } \) = \(\frac { 12 }{ ? } \), then ? =
(a) 5
(b) 10
(c) 15
(d) 25
Answer
Answer: (c) 15
Hint:
\(\frac{4}{5}\) = \(\frac{4×3}{5×3}\) = \(\frac{12}{15}\)
Question 22.
if \(\frac { -4 }{ 7 } \) = \(\frac { ? }{ 14 } \), then ? =
(a) -4
(b) -8
(c) 4
(d) 8
Answer
Answer: (b) -8
Hint:
\(\frac{-4}{7}\) = \(\frac{-4×2}{7×2}\) = \(\frac{-8}{14}\)
Question 23.
if \(\frac { -7 }{ 11 } \) = \(\frac { 14 }{ ? } \), then ? =
(a) 11
(b) -11
(c) 22
(d) -22
Answer
Answer: (d) -22
Hint:
\(\frac{-7}{11}\) = \(\frac{-7×-2}{11×-2}\) = \(\frac{14}{-22}\)
Question 24.
if \(\frac { -3 }{ -5 } \) = \(\frac { 9 }{ ? } \), then ? =
(a) 15
(b) -15
(c) 9
(d) -9
Answer
Answer: (a) 15
Hint:
\(\frac{-3}{-5}\) = \(\frac{-3×-3}{-5×-3}\) = \(\frac{9}{15}\)
Question 25.
if \(\frac { -8 }{ -9 } \) = \(\frac { -16 }{ ? } \), then ? =
(a) 18
(b) -18
(c) 9
(d) -9
Answer
Answer: (b) -18
Hint:
\(\frac{-8}{-9}\) = \(\frac{-8×3}{-9×2}\) = \(\frac{-16}{-18}\)
Question 26.
Which of the following is a negative rational number?
(a) \(\frac { 1 }{ 2 } \)
(b) \(\frac { 3 }{ 4 } \)
(c) \(\frac { -4 }{ -5 } \)
(d) \(\frac { 2 }{ -3 } \)
Answer
Answer: (d) \(\frac { 2 }{ -3 } \)
Hint:
\(\frac{-4}{-5}\) = \(\frac{4}{5}\)
Question 27.
Which of the following is a positive rational number?
(a) \(\frac { -1 }{ 2 } \)
(b) \(\frac { 2 }{ -3 } \)
(c) \(\frac { -3 }{ -4 } \)
(d) -5
Answer
Answer: (c) \(\frac { -3 }{ -4 } \)
Hint:
\(\frac{-3}{-4}\) = \(\frac{3}{4}\)
Question 28.
The rational number \(\frac { 12 }{ 40 } \) in standard 40 form is
(a) \(\frac { 3 }{ 10 } \)
(b) \(\frac { 6 }{ 10 } \)
(c) \(\frac { 3 }{ 20 } \)
(d) \(\frac { 6 }{ 20 } \)
Answer
Answer: (a) \(\frac { 3 }{ 10 } \)
Hint:
\(\frac{12}{40}\) = \(\frac{12÷4}{40÷4}\) = \(\frac{3}{10}\)
Question 29.
The rational number \(\frac { -21 }{ 28 } \) in standard form is
(a) \(\frac { -3 }{ 4 } \)
(b) \(\frac { 3 }{ 4 } \)
(c) \(\frac { 3 }{ 7 } \)
(d) \(\frac { -3 }{ 7 } \)
Answer
Answer: (a) \(\frac { -3 }{ 4 } \)
Hint:
\(\frac{-21}{28}\) = \(\frac{-21÷7}{28÷7}\) = \(\frac{-3}{4}\)
Question 30.
The rational number \(\frac { -6 }{ -25 } \) in standard form is
(a) \(\frac { 6 }{ 25 } \)
(b) \(\frac { -6 }{ 25 } \)
(c) \(\frac { 6 }{ -25 } \)
(d) \(\frac { -6 }{ 25 } \)
Answer
Answer: (a) \(\frac { 6 }{ 25 } \)
Hint:
\(\frac{-6}{-25}\) = \(\frac{-6×-1}{-25×-1}\) = \(\frac{6}{25}\)
Question 31.
Which of the following rational numbers -2 is equivalent to \(\frac { -2 }{ 5 } \) ?
(a) \(\frac { -4 }{ 10 } \)
(b) \(\frac { -2 }{ 10 } \)
(c) \(\frac { -4 }{ 5 } \)
(d) \(\frac { -6 }{ 25 } \)
Answer
Answer: (a) \(\frac { -4 }{ 10 } \)
Hint:
\(\frac{-2}{5}\) = \(\frac{-2×2}{5×2}\) = \(\frac{-4}{10}\)
Question 32.
Which of the following rational numbers is not equivalent to \(\frac { 7 }{ -4 } \) ?
(a) \(\frac { 14 }{ -8 } \)
(b) \(\frac { 21 }{ -12 } \)
(c) \(\frac { 28 }{ -16 } \)
(d) \(\frac { 7 }{ -8 } \)
Answer
Answer: (d) \(\frac { 7 }{ -8 } \)
Hint:
\(\frac{7}{-4}\) = \(\frac{7×2}{-4×2}\) = \(\frac{14}{-8}\) ≠ \(\frac{7}{-8}\)
Question 33.
Which of the following rational numbers is not to equivalent to \(\frac { 3 }{ 5 } \) ?
(a) \(\frac { 6 }{ 10 } \)
(b) \(\frac { -3 }{ -5 } \)
(c) \(\frac { 9 }{ 15 } \)
(d) \(\frac { 12 }{ 24 } \)
Answer
Answer: (d) \(\frac { 12 }{ 24 } \)
Hint:
\(\frac{3}{5}\) = \(\frac{3×4}{5×4}\) = \(\frac{12}{20}\) ≠ \(\frac{12}{24}\)
Question 34.
Which of the following is correct?
(a) \(\frac { 1 }{ -2 } \) > \(\frac { -1 }{ 3 } \)
(b) \(\frac { 1 }{ -2 } \) < \(\frac { -1 }{ 3 } \)
(c) \(\frac { 1 }{ -2 } \) = \(\frac { -1 }{ 3 } \)
(d) None of these
Answer
Answer: (b) \(\frac { 1 }{ -2 } \) < \(\frac { -1 }{ 3 } \)
Question 35.
Which of the following is correct?
(a) 0 > \(\frac { -4 }{ 9 } \)
(b) 0 < \(\frac { -4 }{ 9 } \)
(c) 0 = \(\frac { 4 }{ 9 } \)
(d) None of these
Answer
Answer: (a) 0 > \(\frac { -4 }{ 9 } \)
Question 36.
Which of the following is correct?
(a) –\(\frac { 4 }{ 5 } \) < – \(\frac { 3 }{ 10 } \)
(b) –\(\frac { 4 }{ 5 } \) > – \(\frac { 3 }{ 10 } \)
(c) –\(\frac { 4 }{ 5 } \) = – \(\frac { 3 }{ 10 } \)
(d) None of these
Answer
Answer: (a) –\(\frac { 4 }{ 5 } \) < – \(\frac { 3 }{ 10 } \)
Question 37.
The reciprocal of \(\frac { -2 }{ 5 } \) is
(a) \(\frac { -5 }{ 2 } \)
(b) \(\frac { 5 }{ 2 } \)
(c) \(\frac { 2 }{ 5 } \)
(d) \(\frac { -2 }{ 5 } \)
Answer
Answer: (a) \(\frac { -5 }{ 2 } \)
Question 38.
The sum \(\frac { 5 }{ 4 } \) + (- \(\frac { 25 }{ 4 } \)) =
(a) -5
(b) 5
(c) 4
(d) -4
Answer
Answer: (a) -5
Hint:
\(\frac{5}{4}\) + (\(\frac{-25}{4}\)) = \(\frac{5+(-25)}{4}\) = \(\frac{-20}{4}\) = -5
Question 39.
The sum –\(\frac { 3 }{ 4 } \) + 0 =
(a) \(\frac { 3 }{ 4 } \)
(b) –\(\frac { 3 }{ 4 } \)
(c) 1
(d) 0
Answer
Answer: (b) –\(\frac { 3 }{ 4 } \)
Question 40.
\(\frac { 17 }{ 11 } \) – \(\frac { 6 }{ 11 } \) =
(a) 1
(b) -1
(c) 6
(d) 3
Answer
Answer: (a) 1
Hint:
\(\frac{17}{11}\) – \(\frac{6}{11}\) = \(\frac{17-6}{11}\) = \(\frac{11}{11}\) = 1
Question 41.
\(\frac { 2 }{ -5 } \) × \(\frac { -5 }{ 2 } \) =
(a) 1
(b) -1
(c) 2
(d) -5
Answer
Answer: (a) 1
Question 42.
–\(\frac { 6 }{ 5 } \) × 1 =
(a) –\(\frac { 6 }{ 5 } \)
(b) \(\frac { 6 }{ 5 } \)
(c) –\(\frac { 5 }{ 6 } \)
(d) \(\frac { 5 }{ 6 } \)
Answer
Answer: (a) –\(\frac { 6 }{ 5 } \)
Question 43.
–\(\frac { 6 }{ 5 } \) + 1 =
(a) –\(\frac { 6 }{ 5 } \)
(b) \(\frac { 6 }{ 5 } \)
(c) \(\frac { 5 }{ 6 } \)
(d) –\(\frac { 5 }{ 6 } \)
Answer
Answer: (a) –\(\frac { 6 }{ 5 } \)
Question 44.
\(\frac { 2 }{ 9 } \) × \(\frac { 27 }{ 8 } \) =
(a) \(\frac { 4 }{ 3 } \)
(b) \(\frac { 3 }{ 4 } \)
(c) 3
(d) 4
Answer
Answer: (b) \(\frac { 3 }{ 4 } \)
Question 45.
\(\frac { 7 }{ 12 } \) ÷ ( –\(\frac { 7 }{ 12 } \)) =
(a) 1
(b) -1
(c) 7
(d) -7
Answer
Answer: (b) -1
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