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If (1 – 1.25)N = 1, then N =

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Re: If (1 – 1.25)N = 1, then N =

by Brent@GMATPrepNow » Tue Dec 15, 2020 7:15 am
BTGModeratorVI wrote: ↑
Tue Dec 15, 2020 6:59 am
 If (1 – 1.25)N = 1, then N =

(A) −400
(B) −140
(C) −4
(D) 4
(E) 400

Answer: C
Source: official guide
(1 – 1.25)N = 1
Simplify to get: -0.25N = 1
Rewrite as (-1/4)N = 1
Multiply both sides by -4 to get: N = -4

Answer: C

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Brent
Brent Hanneson - Creator of GMATPrepNow.com
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