SAT Math Practice Question #24334 - SATify | SATify

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SAT Math Practice Question #24334 - SATify | SATify

#24334

algebra

logarithms

Change of Base

medium

120 sec

What value of $x$ satisfies $\frac{lo g _{3} x \cdot lo g _{5} x}{lo g _{3} x + lo g _{5} x} = 1$ ?

A.

10

B.

12

C.

15

D.

20

E.

25