Which term of the A.P. 10, 7, 4, ... is \(-20\)?
A. 10th
B. 12th
C. 11th
D. 9th
1 answer
Best answer
Answer: C. 11th
\(a = 10, d = -3\). \(10 + (n-1)(-3) = -20 \Rightarrow n - 1 = 10 \Rightarrow n = 11\).
Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
Report
Was this answer helpful?
Thanks for the feedback.
Sign up free to save answers and ask your own doubts
Your answer
Log in or create a free account to answer this question.