Question
In each of the following series, one term is missing.
Find the missing term. 7, 11, 19, 35, 67, ?Solution
Differences: 11 − 7 = 4 19 − 11 = 8 35 − 19 = 16 67 − 35 = 32 Differences: 4, 8, 16, 32 (each doubles) Next difference = 64 Missing term = 67 + 64 = 131
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