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प्रश्न
Find the price, if the marginal revenue is 28 and elasticity of demand is 3.
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उत्तर
Given, marginal revenue (Rm) = 28 and
elasticity of demand (η) = 3
`"R"_"m" = "P"(1 - 1/eta)`
∴ `28 = "P" (1 - 1/3)`
∴ 28 = `"P" (2/3)`
∴ `(28 xx 3)/2` = P
∴ P = 42
∴ price = ₹ 42
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