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1, 3, 6, 10, ____ എന്ന ശ്രേണിയിലെ അടുത്ത പദം ഏത് ?

A14

B15

C16

D20

Answer:

B. 15

Read Explanation:

1+2=3 3+3=6 6+4=10 10+5=15


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