JEE Main 2025April, Unspecified (session-level dataset)MathematicsMediumSequence and Series179× since 2002
Let A = \{1, 6, 11, 16, \ldots\} and B = \{9, 16, 23, 30, \ldots\} be the sets consisting of the first 2025 terms of two arithmetic progressions. Then n(A \cup B) is: