Quiz Discussion

The 3rd and 7th term of an arithmetic progression are -9 and 11 respectively. What is the 15th term?

Course Name: Quantitative Aptitude

  • 1] 28
  • 2] 87
  • 3] 51
  • 4] 17
Solution
No Solution Present Yet

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# Quiz
1
Discuss

If log 2, log (2x -1) and log (2x + 3) are in A.P, then x is equal to ___

  • 1]

     

    5/2

  • 2]

    log25

  • 3]

    log32

  • 4]

     

    3/2

Solution
2
Discuss

Find the 15th term of the sequence 20, 15, 10 . . . . .

  • 1] -45
  • 2] -55
  • 3] -50
  • 4] 0
Solution
3
Discuss

The sum of first n odd natural numbers in

  • 1] 2n - 1
  • 2] 2n + 1
  • 3] n2
  • 4] n2 - 1
Solution
4
Discuss

The number of terms of the A.P. 3, 7, 11, 15, ....... to be taken so that the sum is 406 is

  • 1]

    5

  • 2]

    10

  • 3]

    12

  • 4]

    14

Solution
5
Discuss

What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?

  • 1] 219
  • 2] 279
  • 3] 231
  • 4] 137
Solution
6
Discuss

Two A.P.’s have the same common difference. The first term of one of these is 8 and that of the other is 3. The difference between their 30th terms is

  • 1] 11
  • 2] 3
  • 3] 8
  • 4] 5
Solution
7
Discuss

What is the sum of all positive integers up to 1000, which are divisible by 5 and are not divisible by 2?

  • 1] 10,050
  • 2] 5050
  • 3] 5000
  • 4] 50,000
Solution
8
Discuss

The common difference of the A.P. \(\frac{1}{3}, \frac{{1 - 3b}}{3} , \frac{{1 - 6b}}{3}\)   . . . . . . is

 

  • 1]

    \(\frac{1}{3}\)

  • 2]

    \( - \frac{1}{3}\)

  • 3]

    -b

  • 4]

    b

Solution
9
Discuss

If sum of n terms of an A.P. is 3n2 + 5n and Tm = 164 then m =

  • 1]

    26

  • 2]

    27

  • 3]

    28

  • 4]

    None Of This

Solution
10
Discuss

If a + 1, 2a + 1, 4a - 1 are in A.P., then the value of a is:

  • 1] 1
  • 2] 2
  • 3] 3
  • 4] 4
Solution
# Quiz