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IQ Octopus

Quantitative Reasoning · Easy · 2 of 17

Number Series puzzle #2 (easy)

Which number comes next? Tap an option to check your answer, or show the answer for the step-by-step solution. Rule in play: steady addition.

Plate 02 / 17 · Easy

Which number comes next?

4, 10, 16, 22, 28, 34, ?

Tap the option you think is right, or show the answer.

Show the answer

The next number is 40 (option 6).

How to solve it

  1. Find the gap between neighbors: 6, 6, 6, 6, 6.
  2. Each number is 6 more than the one before.
  3. So the next number is 34 + 6 = 40.
Fig. 1: Number Series #2, easy set. Tap an option to check it.

About this puzzle

Easy series use one steady step: add, subtract or double. It was generated by the same engine that builds the IQ Octopus test, from a fixed seed, so it stays the same every time you visit. In the real test, items like this are generated fresh for every attempt.

New to this format? Read how to solve them, or time yourself on 10 in a row with the practice test.

25 puzzles · about 12 min

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