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20 : 480 :: 25 : ?

A700

B725

C655

D625

Answer:

B. 725

Read Explanation:

First number^2 + (First number × 4) 20 : 480 → 20^2 + (20 × 4) = 400 + 80 = 480 25 : ? → 25^2 + (25 × 4) = 625 + 100 = 725

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