GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
If 2^2p-10=2(2^9-2p), then p=
[#permalink]
21 Nov 2018, 08:24
21 Nov 2018, 08:24
Expert Reply
00:00
Question Stats:
95% (00:52) correct
5% (03:34) wrong based on 20 sessions
Hide Show timer Statistics
Manager
Joined: 07 Aug 2016
Posts: 59
Given Kudos: 0
GRE 1: Q166 V156
Re: If 2^2p-10=2(2^9-2p), then p=
[#permalink]
23 Nov 2018, 12:33
23 Nov 2018, 12:33
1
Carcass wrote:
If \(2^{2p-10}=2(2^{9-2p})\), then p=
A. 5
B. 3
C. 0
D. -1
E. -2
A. 5
B. 3
C. 0
D. -1
E. -2
Easiest way is to back-substitute.
p = 5
2^(10-10) = 2 (2^(9 - 10))
2^0 = 2* 2^-1
2^0 = 2/2
1 = 1
Answer choice A
Re: If 2^2p-10=2(2^9-2p), then p=
[#permalink]
27 Nov 2018, 06:53
27 Nov 2018, 06:53
it was the same question as in the exam
