CSATNumber System & SeriesSequence Pattern Reasoning2019

What is X in the sequence 4, 196, 16, 144, 36, 100, 64, X ?

125

256

Correct Answer: Option B

Explanation

Let's look at the sequence: 4, 196, 16, 144, 36, 100, 64, X. **Step 1: Decode the Numbers** A prepared student immediately recognizes these as perfect squares, a skill emphas

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