Live GMAT classes with Target Test Prep start Nov 21 and Nov 22. First class free.

See classes
Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep

Target Test Prep was voted #1 Best Test Prep in the 2026 Newsweek Readers’ Choice™ Awards.

★★★★★5.0563 reviews
GMATLiveTeachStarts Nov 22
Josh Braslow, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Josh Braslow, 20+ years in test prep

Nov 22 · Josh Braslow
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes + 6 months of TTP OnDemand
  • Attend the first class for free
  • Every class is recorded, so you never fall behind
View classes & enroll
Limited seats availableTarget Test Prep
EALiveTeachOnDemandStart anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

EXECUTIVE ASSESSMENT

with

165+ EA score guarantee
$05-day trial no automatic billing
Schedule
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget Test Prep
GMATOnDemandStart anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions
Start free 5-day trial
Read 563 reviewsTarget Test Prep

PS - exponent

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 275
Joined: Wed Jul 02, 2008 4:19 am
Thanked: 4 times
by Xbond » Sun Jul 06, 2008 8:14 am
Hi there,

Could you explain to me how you resolve this PS ,

if (1/5)^m (1/4)^18 = 1/2(10)^35, then m=

A. 17
B. 18
C. 34
D. 35
E. 36

I select A but it's wrong

Could help me

Xbond
Top
Join the discussion
Source: — Problem Solving |
Master | Next Rank: 500 Posts
Posts: 232
Joined: Fri Jul 04, 2008 4:14 pmFollowed by: 1 member
Thanked: 14 times
GMAT Score:760

by rs2010 » Sun Jul 06, 2008 9:09 am
Compare the exponent power.

I am confused with the RHS part of your problem, so cant say anything abt it. But you can perform operation like

(1/5)^m * (1/2)^36 = (1/2) * (2*5)^35

which will be

1=5^(m+35) * 2^ 70
Top
Join the discussion
Newbie | Next Rank: 10 Posts
Posts: 1
Joined: Wed Jun 25, 2008 3:51 am

by tejam800 » Sun Jul 06, 2008 9:46 am
if the q is

(1/5)^m * (1\4)^18 = (1/(2*(10^35))

i got m = 35

(1/5)^m * (1\2)^36 = (1/2)^36 * (1/(5^35))
(1/5)^m = (1/5)^35

plz som 1 validate this
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 232
Joined: Fri Jul 04, 2008 4:14 pmFollowed by: 1 member
Thanked: 14 times
GMAT Score:760

by rs2010 » Sun Jul 06, 2008 10:04 am
This is correct if you assume 10 in DR.
And thats what i wrote earlier.
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 222
Joined: Fri Jan 04, 2008 8:10 pm
Thanked: 15 times

by sibbineni » Sun Jul 06, 2008 11:20 am
Question

(1/5)^m (1/4)^18 = 1/2(10)^35

Left hand side

(1/5)^m (1/4)^18 ==>5^-m 2^-36

Right hand side

1/2(10)^35===>1/2^36*5^35==>2^-36 5^-35

lhs=rhs


5^-m 2^-36=2^-36 5^-35

equating whose bases are equal then

-m=-35

m=35
Top
Join the discussion
Master | Next Rank: 500 Posts
Posts: 275
Joined: Wed Jul 02, 2008 4:19 am
Thanked: 4 times

by Xbond » Sun Jul 06, 2008 1:15 pm
many thks
the answer was D
Top
Join the discussion