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1,1,3,9,6,36,10,100,(..),225

  • 12
  • 13
  • 14
  • 15

Answer: Option D

Explanation:

Given sequence is combination of two series
Series 1 : 1,3,6,10,..
Series 2 : 1,9,36,100,225

In series 1 pattern is +2, +3, +4. So next term will be
10+5 = 15

Similar Questions :

1. Which number would replace the question mark in series
7,12,19,?,39

  • 24
  • 28
  • 31
  • 33

Answer: Option B

Explanation:

Pattern is , +5, +7, +9
Missing Number = 19+9 = 28

2. 1,2,6,24, ?

  • 110
  • 118
  • 120
  • 122

Answer: Option C

Explanation:

Pattern is *2, *3, *4
So next number is the series will be *5
24*5 = 120

3. 8, 10, 14, 18, (...), 34, 50, 66

  • 20
  • 24
  • 26
  • 28

Answer: Option C

Explanation:

Patten is +2, +4, +4, .., .., +16, +16

Missing number will be 18+8 = 26

4. 2,15,41,80, ? . Complete the series.

  • 130
  • 132
  • 134
  • 136

Answer: Option B

Explanation:

Pattern is +13,+(13*2), +(13*3)
Next will be +(13*4) = 80+52 = 132

5. Complete the series 95, 115.5, 138, ..., 189

  • 160.5
  • 162.5
  • 164.5
  • 166.5

Answer: Option B

Explanation:

Pattern in the series is, +20.5 , +22.5,
Next will be +24.5
138 + 24.5 = 162.5

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