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അടുത്ത സംഖ്യയേത് 4, 25, 64, _____ ?

A39

B121

C81

D100

Answer:

B. 121

Read Explanation:

2² = 4 (2+3)²=5²=25 (5+3)²=8²=64 (8+3)²=11²=121

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