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Analogies and Classification · Question 24 of 66

Question 24

EasyOriginal question

7 : 15 :: 11 : ?

Options for question 24

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. 15=2×7+115 = 2 \times 7 + 1: double the number and add 1.

  2. 2×11+1=232 \times 11 + 1 = 23.

Worth noting

24 adds 2 instead of 1, and 33 and 34 triple 11 instead of doubling it. Adding the difference 8 to 11 gives 19, which is not offered, a sign that the rule is not 'add 8'.

Concept
Number analogy: double and add one
Typical time
40 s
Your time
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