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Jee Main 2025 — Medium JEE math MCQ

If the first term of an A.P. is 3 and the sum of its first four terms is equal to one-fifth of the sum of the next four terms, then the sum of the first 20 terms is equal to
  1. A. $-1080$ -
  2. B. $-1020$ -
  3. C. $-1200$ -
  4. D. $-120$

Solution

The correct option is **A**. (A. $-1080$ -)

MATH

medium • PYQ Reworded
Question
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If the first term of an A.P. is 3 and the sum of its first four terms is equal to one-fifth of the sum of the next four terms, then the sum of the first 20 terms is equal to
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Jee Main 2025 — Medium JEE Mathematics MCQ | MyGoalPrep