CBSE Board Practice

CBSE Grade X - Real Numbers
Question 1
1.
    • Convert the fraction
    • 389

      18
    • to non-terminating recurring decimal
  • 0.2
    1
  • 2161.
    1
  • 2.
    1
  • 21.6
    1
  • 216.
    1
Question 2
2.
    • Find the number of prime factors of
    • 600
  • 2
  • 3
  • 0
  • 1
  • 4
Question 3
3.
4.10 =
  • 41

    100
  • 41

    10
  • 41

    1000
  • 41
  • 410
Question 4
4.
    • Find the number of prime factors of
    • 92
  • 2
  • 0
  • 3
  • 4
  • 1
Question 5
5.
Which of the following fractions converts to a non-terminating recurring decimal?
  • 420

    1
  • 2160

    32
  • 3360

    16
  • 211

    1
  • 311

    18
Question 6
6.
    • Find the LCM of
    • {12,8,14}
  • 168
  • 166
  • 170
  • 169
  • 167
Question 7
7.
    • Find the product of LCM and HCF of
    • {9,8}
  • 75
  • 72
  • 71
  • 69
  • 73
Question 8
8.
    • Find the total number of factors of
    • 1150
  • 13
  • 9
  • 11
  • 15
  • 12
Question 9
9.
    • Find the LCM of
    • {8,6,16,9}
  • 144
  • 141
  • 147
  • 145
  • 143
Question 10
10.
    • Find the HCF of
    • {165,420,555,75}
  • 16
  • 18
  • 13
  • 14
  • 15