Insert the missing number:
2, 6, 12, 20, 30, 42, 56, (…..)

One Answer on this Question

1. Difference between 2 and 6 is = 4
   Difference between 6 and 12 is = 6
   Difference between 12 and 20 is = 8
   Difference between 20 and 30 is = 10
   Difference between 30 and 42 is = 12
   Difference between 42 and 56 is = 14
   So ne number will be with 16 Difference i .e 72
   Therefore Answer will be 72

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