Discussion
What is the next number in the sequence: 1, 4, 9, 16, 25, ...?
Answer: B
The terms are the perfect squares.
\[ 1^{2},\ 2^{2},\ 3^{2},\ 4^{2},\ 5^{2} \]
\[ \text{next} = 6^{2} = 36 \]
The 49 on offer is \( 7^{2} \), one term too far.
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