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ശ്രേണിയിലെ അടുത്ത സംഖ്യ ഏത് ? 1,3,7,15,______

A33

B27

C29

D31

Answer:

D. 31

Read Explanation:

1+1=2+1=3 3+3=6+1=7 7+7=14+1=15 15+15=30+1=31


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