Which number continues the sequence 7, 11, 15, 19, 23, ...?

Answer and explanation

Correct answer: D. 27

  1. Step 1: The difference is 4. Step 2. 23 + 4 = 27. Answer: 27. Why not the others: 31: the step was added twice. 26: the pattern was misjudged by one. 28: the pattern was misjudged by one.

Practise more Quantitative Reasoning.

Free questions with an explanation for every one, and full timed Sciences Po and Grandes Ecoles Entrance Practice mock tests.