The following GMAT Problem Solving question tests your understanding of how to apply exponent rules.

**Question 15**:

If $x=27^{27}$ and $x^{x}=3^{y}$, then $y=$?

- $\quad 3^{81}$
- $\quad 3^{83}$
- $\quad 3^{85}$
- $\quad 3^{87}$
- $\quad 3^{89}$

**Video Explanation**

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