The points (1, 1), (2, 3) and (3, k) are collinear. Then \(k = \)

A. 4

B. 6

C. 7

D. 5

Doubtly AI Asked 24 Oct 2026 AI-verified · Oct 2026 ssc 10th Save WhatsApp Report

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Answer: D. 5

Slope of the first two points \(= \frac{3-1}{2-1} = 2\). For collinearity, \(\frac{k-3}{3-2} = 2 \Rightarrow k = 5\).

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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