Quiz Discussion

If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be

Course Name: Quantitative Aptitude

  • 1] 0
  • 2] 1
  • 3] 2
  • 4] -1
Solution
No Solution Present Yet

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# Quiz
1
Discuss

What is the sum of the first 12 terms of an arithmetic progression if the 3rd term is -13 and the 6th term is -4?

  • 1]

    -30

  • 2]

    41

  • 3]

    -23

  • 4]

    -34

Solution
2
Discuss

What is the sum of all 3 digit numbers that leave a remainder of '2' when divided by 3?

  • 1]

    897

  • 2]

    1,64,850

  • 3]

    1,64,749

  • 4]

    1,49,700

Solution
3
Discuss

(1) + (1 + 1) + (1 + 1 + 1) + ....... + (1 + 1 + 1 + ...... n - 1 times) = ......

  • 1]

    \(\frac{{n\left( {n + 1} \right)}}{2}\)

  • 2]

    \(\frac{{n\left( {n - 1} \right)}}{2}\)

  • 3]

    \({n^2}\)

  • 4]

    n

Solution
4
Discuss

If 18, a, b - 3 are in A.P. then a + b =

  • 1] 19
  • 2] 7
  • 3] 11
  • 4] 15
Solution
5
Discuss

A boy agrees to work at the rate of one rupee on the first day, two rupees on the second day, and four rupees on third day and so on. How much will the boy get if he started working on the 1st of February and finishes on the 20th of February?

  • 1] 220
  • 2] 220 -1
  • 3] 219 -1
  • 4] 219
  • 5] None of these
Solution
6
Discuss

Let S denotes the sum of n terms of an A.P. whose first term is a. If the common difference d is given by d = Sn – k Sn-1 + Sn-2 then k =

  • 1]

    1

  • 2]

    2

  • 3]

    3

  • 4]

    4

Solution
7
Discuss

What is the sum of the following series? -64, -66, -68, ......, -100

  • 1] -1458
  • 2] -1558
  • 3] -1568
  • 4] -1664
Solution
8
Discuss

Sum of n terms of the series \(\sqrt 2   +   \sqrt 8   +   \sqrt {18}   +   \sqrt {32}   +  \) ....... is

 

  • 1]

    \(\frac{{n\left( {n + 1} \right)}}{2}\)

  • 2]

    \(2n\left( {n + 1} \right)\)

  • 3]

    \(\frac{{n\left( {n + 1} \right)}}{{\sqrt 2 }}\)

  • 4]

    1

Solution
9
Discuss

For an A.P. if a25 - a20 = 45, then d equals to:

  • 1] 9
  • 2] -9
  • 3] 18
  • 4] 23
Solution
10
Discuss

The sum of the first four terms of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of terms is

  • 1]

    10

  • 2]

    11

  • 3]

    12

  • 4]

    13

Solution
# Quiz