Find the next term in the sequence.
1A, 3C, 6F, 10J, 15O, ?
Show answer & explanation
Correct answer: B
Explanation

? = 21 U
SSC GD Constable - 29 April 2026 - Shift 3 • Reasoning • Q10
Find the next term in the sequence.
1A, 3C, 6F, 10J, 15O, ?
Correct answer: B
Explanation

? = 21 U