CBSE Board Practice

CBSE Grade X - Arthimetic Progressions
Question 1
1.
    • Given a =
    • 6
    • , d =
    • 4
    • , n =
    • 17
    • , find
    • S

      n
  • 647
  • 644
  • 649
  • 645
  • 646
Question 2
2.
    • The
    • t

      5
    • of an A.P. is
    • 18
    • and the
    • t

      7
    • is
    • 26
    • .
    • Find
    • t

      15
    • .
  • 59
  • 60
  • 58
  • 57
  • 55
Question 3
3.
    • If a =
    • 6
    • and d =
    • 1
    • , find
    • t

      9
    • of the A.P.
  • 16
  • 11
  • 14
  • 15
  • 13
Question 4
4.
    • Given a =
    • 3
    • , d =
    • 5
    • , n =
    • 16
    • , find
    • t

      n
  • 81
  • 79
  • 78
  • 77
  • 76
Question 5
5.
    • The sum of first three terms of an A.P. is
    • 147

      20
    • while their product is
    • 23373

      1600
    • .
    • Find the A.P.
  • 9

    4
    ,
    49

    20
    ,
    53

    20
    ,
    . . .
  • 9

    4
    ,
    41

    20
    ,
    37

    20
    ,
    . . .
  • 3

    2
    ,
    17

    10
    ,
    19

    10
    ,
    . . .
  • 11

    4
    ,
    59

    20
    ,
    63

    20
    ,
    . . .
  • 9

    4
    ,
    31

    12
    ,
    35

    12
    ,
    . . .
Question 6
6.
    • Which term of the A.P.
    • 7
      ,
      13
      ,
      19
      ,
      . . .
    • is
    • 91
    • ?
  • t

    15
  • t

    17
  • t

    12
  • t

    16
  • t

    14
Question 7
7.
    • Given
    • t

      n
    • =
    • 68
    • , a =
    • 5
    • , n =
    • 10
    • , find
    • S

      n
  • 368
  • 364
  • 366
  • 362
  • 365
Question 8
8.
Find the sum of all natural numbers between 1 and 100 which are multiples of 4?
  • 1200
  • 1202
  • 1198
  • 1199
  • 1201
Question 9
9.
    • Determine
    • t

      19
    • of an A.P whose
    • t

      10
    • is
    • 68
    • and common difference is
    • 7
  • 134
  • 128
  • 130
  • 132
  • 131
Question 10
10.
    • The first term of the A.P.
    • 3
      ,
      4
      ,
      5
      ,
      6
      ,
      7
      ,
      . . .
    • =
  • 3
  • 5
  • 4
  • 7
  • 6