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GMAT - Data Sufficiency - Roots

What is cube root of w? (more)

What is cube root of w?

Statement 1: 

\sqrt [ 5 ]{ w } =\quad 64

Statement 2:

\sqrt [ 15 ]{ w } =\quad 4

 

Statement 1:

\sqrt [ 5 ]{ w } = 64

{w}={ 64 }^{ 5 }

\sqrt[3]{w}={ 64 }^{ 5 /3}

Sufficient

\sqrt [ 15 ]{ w } = 4

{w}={ 4 }^{ 15 }

\sqrt[3]{w}={ 4 }^{ 15 /3}

Sufficient