If 27x − 2/3 = 81, then value of 23x+1 is :यदि 27x − 2/3 = 81, तो 23x+1 का मान है :
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Correct answer: B. 128
Explanation
27x − 2/3 = 33x − 2 = 81 = 34, so 3x − 2 = 4 and x = 2. Then 23x+1 = 27 = 128.27x − 2/3 = 33x − 2 = 81 = 34, अतः 3x − 2 = 4 और x = 2। तब 23x+1 = 27 = 128।More Mathematics & Numerical Ability questions
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