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$\log_{xyz} w$

Algebra Level 3

If $x>1$ , $y>1$ , $z>1$ , $w>0$ , and $\log_x w=20, \log_y w=36, \log_{xyz} w=10,$ what is the value of $\log_z w?$

40 45 30 35

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by Ajay Dutta

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