Asked in: March 2024 board paperFor an A.P., \(t_7 = 4\), \(d = -4\), then \(a\) = ____ .

A. 6

B. 7

C. 20

D. 28

Doubtly Asked 29 Oct 2026 Practice test ssc 10th Save WhatsApp Report

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Answer: (D) 28

\(t_n = a + (n - 1)d\)

\(t_7 = a + 6d \Rightarrow 4 = a + 6(-4) \Rightarrow 4 = a - 24 \Rightarrow a = 28\).

Doubtly AI · 29 Oct 2026 AI-verified · Nov 2026 Report

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