Class 7 Rational Numbers CBSE Questions & Answers

Class 7 · Rational Numbers

This is Mathematics Class 7 Rational Numbers CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The integer -8 as rational number is _____.
  • A
    8
  • B
    None of these
  • C
    -8
  • D
    \(\frac{{ - 8}}{1}\)
    Correct
2
The product of a rational number with its reciprocal is always __________.
  • A
    1
    Correct
  • B
    -1
  • C
    0
  • D
    None of these
3
Simplify: \(\frac{{10}}{{13}} \times \frac{{26}}{{15}} + \frac{{13}}{{25}} \times \frac{{10}}{{13}}\).
  • A
    \(1\frac{{11}}{{15}}\)
    Correct
  • B
    \(\frac{{11}}{{15}}\)
  • C
    None of these
  • D
    \(1\frac{{11}}{{13}}\)
4
Seema spends \(\frac{3}{4}\) of her pocket money. She spends \(\frac{1}{2}\) of it on a book, \(\frac{1}{6}\)on a movie and the remaining amount on a dress. What part of her pocket money did she spend on the dress?
  • A
    \(\frac{1}{4}\)
  • B
    \(\frac{1}{2}\)
  • C
    \(\frac{1}{{12}}\)
    Correct
  • D
    None of these
5
The multiplicative inverse of \(\frac{{11}}{{35}}\) is
  • A
    1
  • B
    \(\frac{{35}}{{11}}\)
    Correct
  • C
    \(\frac{{11}}{{35}}\)
  • D
    None of these
6
Find x such that\(\frac{{ - 1}}{5} = \frac{8}{x}\).
  • A
    -40
    Correct
  • B
    8
  • C
    5
  • D
    40
7
Find x such that\(\frac{7}{{ - 3}} = \frac{x}{6}\).
  • A
    -12
    Correct
  • B
    12
  • C
    None of these
  • D
    8
8
Find x such that\(\frac{3}{5} = \frac{x}{{ - 25}}\).
  • A
    15
  • B
    None of these
  • C
    5
  • D
    -15
    Correct
9
Find x such that\(\frac{{13}}{6} = \frac{{ - 65}}{x}\).
  • A
    -30
    Correct
  • B
    20
  • C
    10
  • D
    30
10
Find x such that\(\frac{{16}}{x} = - 4\).
  • A
    \(\frac{1}{4}\)
  • B
    4
  • C
    None of these
  • D
    -4
    Correct
11
Find x such that\(\frac{{ - 48}}{x} = 2\).
  • A
    -24
    Correct
  • B
    None of these
  • C
    24
  • D
    2
12
Find the value of\(\frac{9}{2} \times \frac{{ - 4}}{3}\).
  • A
    -6
    Correct
  • B
    6
  • C
    None of these
  • D
    \(\frac{1}{2}\)
13
Find the value of\(\frac{3}{{ - 5}} \times \frac{{ - 5}}{{ - 3}}\).
  • A
    -1
    Correct
  • B
    1
  • C
    0
  • D
    None of these
14
Find the value of\(\frac{3}{{10}} \times \frac{{ - 2}}{3}\).
  • A
    None of these
  • B
    -5
  • C
    5
  • D
    \(\frac{{ - 1}}{5}\)
    Correct
15
Find the value of\( - 6 \div \frac{2}{3}\).
  • A
    3
  • B
    -9
    Correct
  • C
    9
  • D
    None of these