What is the next number in the series -2, 1, 6, 13?

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-2, 1, 6, 13, അടുത്ത സംഖ്യയേത്?

A22

B21

C20

D18

Answer:

A. 22

Read Explanation:

-2 + 3 = 1 1 + 5 = 6 6 + 7 = 13 13 + 9 = 22

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