Discussion
A single relationship connects every term shown here. Discover the pattern and state the value the question mark conceals.
12, 16, 26, 42, 64, ?
Answer: D
Correct answer: 92
The gaps are not equal: they run 4, 10, 16, 22, each 6 more than the last. The next gap must therefore be 28, and adding it to the final term, 64 plus 28 is 92. As a check, the gap between the answer and 64 is 28, which continues the run of gaps 4, 10, 16, 22 by a further 6. Where the options are widely spread, identifying the family is enough to choose between them without exact calculation.
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