ICSE Board Practice

ICSE Grade VII - Average
Question 1
1.
Find the mean of first 10 multiples of 5.
  • 53

    2
  • 55

    2
  • 28
  • 57

    2
  • 109

    4
Question 2
2.
    • If the mean of
    • 7
    • samples is
    • 22
      5

      7
    • ,
    • what is the new mean if
    • 4
    • is subtracted from each number.
  • 19
  • 129

    7
  • 131

    7
  • 167

    9
Question 3
3.
Find the mean of first 8 multiples of 9.
  • 83

    2
  • 161

    4
  • 81

    2
  • 79

    2
  • 41
Question 4
4.
    • The mean of
    • 5
    • numbers is
    • 11
      3

      5
    • .
    • Upon
    • adding
    • one number,
    • the mean becomes
    • 12
      1

      2
    • .
    • Find the
    • included
    • number.
  • 20
  • 18
  • 16
  • 14
  • 17
Question 5
5.
    • Given the mean of
    • 10
    • samples as
    • 5
      3

      10
    • ,
    • what is the new mean if two samples
    • 1
    • and
    • 7
    • are added ?
  • 61

    12
  • 51

    10
  • 21

    4
  • 71

    14
  • 59

    12
Question 6
6.
Find the mean of the first 10 odd numbers.
  • 10
  • 11
  • 9
  • 12
  • 8
Question 7
7.
    • Given the mean of
    • 5
    • samples as
    • 9
      4

      5
    • ,
    • what is the mean if a sample value is
    • decreased
    • by
    • 13
    • ?
  • 34

    5
  • 22

    3
  • 36

    5
  • 50

    7
  • 38

    5
Question 8
8.
    • Given the mean of
    • 10
    • samples as
    • 9
      1

      2
    • ,
    • what is the mean if a sample value is
    • increased
    • by
    • 16
    • ?
  • 133

    12
  • 109

    10
  • 111

    10
  • 113

    10
  • 89

    8
Question 9
9.
    • If the mean of
    • 7
    • samples is
    • 29
      3

      7
    • ,
    • what is the new mean if each number is multiplied by
    • 8
    • .
  • 706

    3
  • 1178

    5
  • 1648

    7
  • 1646

    7
  • 1650

    7
Question 10
10.
    • Given the mean of
    • 12
    • samples as
    • 5
    • ,
    • what is the new mean if two samples
    • 6
    • and
    • 6
    • are removed ?
  • 16

    3
  • 24

    5
  • 22

    5
  • 32

    7
  • 26

    5