Question

Insert the missing number. 2 - 6 -12 - 20 - 30 - 42 - 56 - (....)

Answer 1

Answer:

72

Step-by-step explanation:

Difference between two numbers

6-2=4

12-6=6

20-12=8

30-20=10

42-30=12

56-42=14

then the next difference should be 16

so,

56+16= 72

Hope, this will help you...