For which of the following values of a : b is (4a2 + 2ab) : (2ab + b²) = 5 : 1? a & b are natural numbers.
Explanation:
4a2+2ab2ab+b2=51
⇒ 2a(2a+b)b(2a+b)=51
⇒ 2a/b = 5/1
⇒ a/b = 5/2
Hence, option (c).
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