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Q: Study the given pattern carefully and select the number that can replace the question mark (?) in it. 4 7 6 15 ? 21 44 68 60
  • A. 18
  • B. 20
  • C. 24
  • D. 19
Correct Answer: Option C - Such as, 15 – 4 = 11 11×4 = 44 And, 21 – 6 = 15 15 × 4 = 60 Same as, (? – 7) × 4 = 68 ? – 7 = 17 Hence, ? = 24
C. Such as, 15 – 4 = 11 11×4 = 44 And, 21 – 6 = 15 15 × 4 = 60 Same as, (? – 7) × 4 = 68 ? – 7 = 17 Hence, ? = 24

Explanations:

Such as, 15 – 4 = 11 11×4 = 44 And, 21 – 6 = 15 15 × 4 = 60 Same as, (? – 7) × 4 = 68 ? – 7 = 17 Hence, ? = 24