Complete the series: 2, 4, 10, 28, _______?

Complete the series: 2, 4, 10, 28, _______?

  • (A) 64
  • (B) 70
  • (C) 76
  • (D) 82

 

Correct option is (D) 82 Solution: Pattern of series can be: 4 - 2 = 2 10 - 4 = 6 28 - 10 = 18 The differences are increasing by a factor of 3 each time (2 × 3 = 6 , 6 × 3 = 18 , 18 × 3 = 54) Lets continue this pattern 28 + 18 × 3 = 28 + 54 = 82 Therefore, the next number in the sequence in 82
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