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1,3,7,13,21 ......എന്ന സംഖ്യാശ്രേണിയിലെ അടുത്ത പദം ഏത്?

A50

B35

C31

D41

Answer:

C. 31

Read Explanation:

1 + 2 = 3 3 + 4 = 7 7 + 6 = 13 13 + 8 = 21 21 + 10 = 31

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