What is the missing number in the sequence 7, 11, 19, ?, 67?

Answer and explanation

Correct answer: C. 35

  1. Step 1: 7 to 11 is ×2 - 3, and 11 to 19 is ×2 - 3. Step 2. So the missing number is 19 × 2 - 3 = 35. Step 3. Check: 35 × 2 - 3 = 67. Answer: 35. Why not the others: 27: This adds 8, repeating the last gap. 38: This doubles 19 and forgets to subtract 3. 41: This doubles 19 and adds 3 instead of subtracting 3.

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