If \(r\) and \(s\) are positive integers such that \((2^r)(4^s) = 16,\) then \(2r + s =\)

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If \(r\) and \(s\) are positive integers such that \((2^r)(4^s) = 16,\) then \(2r + s =\)

by M7MBA » Thu Oct 29, 2020 12:44 pm

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If \(r\) and \(s\) are positive integers such that \((2^r)(4^s) = 16,\) then \(2r + s =\)

(A) 2
(B) 3
(C) 4
(D) 5
(E) 6

Answer: D

Source: Official Guide

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Source: Beat The GMAT — Problem Solving | Thu Oct 29, 2020 12:44 pm

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