What comes next: 0, 1, 3, 6, 10, 15, ?
Puzzles
18
19
20
21
Answer Explanation
The correct answer is "21". In this pattern recognition item, the best choice is the one that preserves the rule or condition stated in the prompt.
Correct answer: 21
The correct answer is "21". In this pattern recognition item, the best choice is the one that preserves the rule or condition stated in the prompt.