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 …
Q1
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
[JEE Main 2025, 23 Jan (Shift 1)]
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