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2, 6, 12, 20, 30, 42,56, (.........)?

Aptitude Quizzes Mathematics Aptitude Test

Question:
2, 6, 12, 20, 30, 42,56, (.........)

Option A):
60
Option B):
64
Option C):
70
Option D):
72

Correct Answer is Option D):
72

Explanation:
The sequence is lx2,2x3,3x4,4x5,5x6,6x7,7x8. :.Missing number = 8 x 9 = 72