ICSE Board Practice

Class VI Class VII Class VIII Class IX Class X
ICSE Grade VII - Average
Question 1
1.
    • If the mean of
    • 6
    • samples is
    • 21
      1
      3
    • ,
    • what is the new mean if
    • 3
    • is added to each number.
  • 121
    5
  • 73
    3
  • 71
    3
  • 25
Question 2
2.
Find the mean of first 7 multiples of 13.
  • 54
  • 49
  • 53
  • 51
  • 52
Question 3
3.
Find the mean of the first 10 even numbers.
  • 12
  • 8
  • 13
  • 11
  • 10
Question 4
4.
    • The mean of
    • 10
    • numbers is
    • 11
      1
      2
    • .
    • Upon
    • excluding
    • one number,
    • the mean becomes
    • 11
      4
      9
    • .
    • Find the
    • excluded
    • number.
  • 13
  • 11
  • 12
  • 14
  • 9
Question 5
5.
    • The arithmetic mean of
      • 25
      • 40
      • 30
      • 34
      • 17
      • 6
      • 21
    • is
  • 25.71
  • 26.71
  • 24.71
  • 22.71
  • 23.71
Question 6
6.
    • Given the mean of
    • 10
    • samples as
    • 5
      7
      10
    • ,
    • what is the new mean if two samples
    • 8
    • and
    • 5
    • are added ?
  • 25
    4
  • 37
    6
  • 35
    6
  • 11
    2
  • 45
    8
Question 7
7.
    • If the mean of
    • 5
    • samples is
    • 25
      3
      5
    • ,
    • what is the new mean if
    • 6
    • is subtracted from each number.
  • 98
    5
  • 96
    5
  • 136
    7
  • 20
Question 8
8.
Find the mean of all prime numbers between 40 and 90.
  • 385
    6
  • 257
    4
  • 509
    8
  • 127
    2
  • 383
    6
Question 9
9.
Find the mean of the first 20 odd numbers.
  • 21
  • 23
  • 20
  • 17
  • 19
Question 10
10.
    • Given the mean of
    • 9
    • samples as
    • 11
      8
      9
    • ,
    • what is the mean if a sample value is
    • decreased
    • by
    • 19
    • ?
  • 86
    9
  • 88
    9
  • 106
    11
  • 10