If $\left(\dfrac54\right)^{-n} < 16^{-1},$ what is the least integer value of $n?$

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by M7MBA » Sun Jun 13, 2021 9:33 am

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If $\left(\dfrac54\right)^{-n} < 16^{-1},$ what is the least integer value of $n?$

A. 12
B. 13
C. 14
D. 15
E. 16

Answer: B

Source: Magoosh

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Source: Beat The GMAT — Problem Solving | Sun Jun 13, 2021 9:33 am

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