Number series (missing term): Differences increase by a constant step. Given sequence: 6, 12, 21, ?, 48 Hint: successive differences rise by 3 each time (6, 9, 12, 15, …). Choose the correct missing number.

Q: Number series (missing term): Differences increase by a constant step. Given sequence: 6, 12, 21, ?, 48 Hint: successive differences rise by 3 each time (6, 9, 12, 15, …). Choose the correct missing number.

Differences 12 − 6 = 621 − 12 = 9? − 21 = 12 ⇒ ? = 3348 − 33 = 15 (continues the +3 step) Final Answer 33

Difficulty: Easy

Correct Answer: 33

Explanation:

Differences
12 − 6 = 621 − 12 = 9? − 21 = 12 ⇒ ? = 3348 − 33 = 15 (continues the +3 step)

Final Answer
33

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