SAT Math Practice Question #28170 - SATify | SATify

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SAT Math Practice Question #28170 - SATify | SATify

#28170

algebra

logarithms

Change of Base

medium

120 sec

What is the value of $a$ for which $\frac{1}{lo g _{2} a} + \frac{1}{lo g _{8} a} = 1$ ?

A.

4

B.

8

C.

12

D.

16

E.

32