CBSE  /  Class 10  /  Maths  /  Arithmetic Progressions

  • 1. 
    The sum of the first 15 multiples of 8 is

  • 920
  • 860
  • 900
  • 960

  • 2. 
    Next term of the AP √2, 3√2, 5√2, ....... is

  • 2√7
  • 6√2
  • 9√2
  • 7√2

  • 3. 
    First four terms of the sequence an = 2n + 3 are

  • 3, 5, 7, 9
  • 5, 7, 9, 11
  • 5, 8, 11, 14
  • 1, 3, 5, 7

  • 4. 
    20th term of the AP -5, -3, -1, 1, is

  • 33
  • 30
  • 20
  • 25

  • 5. 
    If nth term of an AP is 7 - 4n, then its common difference is

  • 4
  • -4
  • 3
  • 11

  • 6. 
    If the sum of first n terms of an AP is An + Bn² where A and B are constants. The common difference of AP will be

  • A + B
  • A - B
  • 2A
  • 2B

  • 7. 
    The 10th term of the sequence √3, \(\sqrt{12}\), \(\sqrt{27}\); ...... is

  • \(\sqrt{243}\)
  • \(\sqrt{300}\)
  • \(\sqrt{363}\)
  • 432

  • 8. 
    Sum of n terms of the series

  • \(\frac{n(n+2)}{√2}\)
  • √2 n(n+1)
  • \(\frac{n(n+1)}{√2}\)
  • 1

  • 9. 
    If p - 1, p + 3, 3p - 1 are in AP, then p is equal to

  • 4
  • -4
  • 2
  • -2

  • 10. 
    The sum of the first 2n terms of the AP: 2, 5, 8, .... is equal to sum of the first n terms of the AP: 57, 59, 61, ... then n is equal to.

  • 10
  • 11
  • 12
  • 13
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