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Complete the series
1,6,13,22,33,...

  • 46
  • 48
  • 49
  • 51

Answer: Option A

Explanation:

Pattern is +5, +7, +9, +11
So next number will be +13
=> 33+13 = 46

Similar Questions :

1. In the series 2, 6, 18, 54, ... what will be the 8th term ?

  • 4174
  • 4150
  • 4274
  • 4374

Answer: Option D

Explanation:

We can see the given series is in G.P.
as 2*3 = 6, 6*3 = 18, 18*3 = 54
So a = 2 , r = 3
nth term in G.P. is
\begin{aligned}
ar^{n-1} \\
= 2*3{8-1} \\
= 2*3^7 \\
= 2*2187 = 4374
\end{aligned}

2. Complete the series, 3, 8, 13, 24, 41, ?

  • 70
  • 66
  • 64
  • 62

Answer: Option A

Explanation:

Pattern of the above series is
first + second + 2, second + third + 3, third + fourth + 4......
So next term will be
24 + 41 + 5 = 70

3. Which number should be replaced with x in following series :

2, 3, 5, 7, 11, x, 17

  • 12
  • 13
  • 14
  • 15

Answer: Option B

Explanation:

Above series contains prime number series. So after 11, 13 is next prime number.

4. 1,6,15,(...),45,66,91

  • 26
  • 28
  • 29
  • 34

Answer: Option B

Explanation:

Pattern in the series is, +5, +9, .., .., +21, +25
So 4 is getting increased at every term addition.
Missing term in the series will be 15+(9+4)
= 15+13 = 28

5. 4, 10, (?), 82, 244, 730

  • 26
  • 28
  • 40
  • 48

Answer: Option B

Explanation:

Each number in the series is the preceding number multiplied by 3 and then decreased by 2.

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