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Q: Study the given pattern carefully and select the number that can replace the question mark (?) in it. 2 10 18 3 30 84 4 68 ?
  • A. 512
  • B. 260
  • C. 264
  • D. 256
Correct Answer: Option B - Series given in horizontal order- 2 X 10 – 2 X 1 = 20 – 2 = 18 3X 30 – 3 X 2 = 90 – 6 = 84 4 X 68 – 4 X 3 = 272 – 12 = 260 Hence, ? =260
B. Series given in horizontal order- 2 X 10 – 2 X 1 = 20 – 2 = 18 3X 30 – 3 X 2 = 90 – 6 = 84 4 X 68 – 4 X 3 = 272 – 12 = 260 Hence, ? =260

Explanations:

Series given in horizontal order- 2 X 10 – 2 X 1 = 20 – 2 = 18 3X 30 – 3 X 2 = 90 – 6 = 84 4 X 68 – 4 X 3 = 272 – 12 = 260 Hence, ? =260