If a : b = 2 : 3 and 2 : a =1 : 2, then the value of 'b' is?

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Accepted Answer

∵ a / b = 2/3 and 2 / a = 1/2 ⇒ a/b x 2/a = 2/3 x 1/2 ⇒ 2/b = 1/3 ∴ b = 6

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