BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

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.

★★★★★5.0559 reviews
GMATBootcamp Starts Sep 21
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE BOOTCAMP

Live Online Bootcamp Class with Top GMAT Expert Chris Peckover

Sep 21 to Oct 9, 2026

Schedule
Mon to Fri · 7:00 to 10:00 PM ET
Included
Live classes + 6 months of TTP OnDemand
  • Boost your GMAT score in less than one month in a live online class
  • 6 months access to TTP OnDemand video courses included
View bootcamp & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
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
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start 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

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

values!!

Expert replies
by clueless_me » Thu Oct 07, 2010 9:33 am
Although in classical mechanics a physicist can definitely predict both the position and the velocity of an object, in ordinary quantum mechanics certainty in predicting one of those values comes only at the expense of uncertainty about the other.
(A) certainty in predicting one of those values comes only at the expense of uncertainty about the other
(B) certainty in predicting one value comes only at the expense of uncertainty about another
(C) predicting one of those values definitely is Anly at the expense of the other' s uncertainty
(D) only at the expense of uncertainty about another value can you predict one of those values with certainty
(E) If you definitely predict one of those values it is only at the expense of your uncertainty about the other

[spoiler] A
but pls explain why B is wrng.... its making sense even w/o "those"[/spoiler]
Join the discussion
Source: — Sentence Correction |

by shovan85 » Thu Oct 07, 2010 9:41 am
Why B is wrong?

You cannot discard "those of". Here those means "position and velocity" (inherited from not underlined part).
The underlined section say that "certainty in predicting position comes only at the expense of uncertainty about velocity"
or
"certainty in predicting velocity comes only at the expense of uncertainty about position "
Join the discussion

by niksworth » Thu Oct 07, 2010 10:43 am
1. those is required to make the reader understand that quantum mechanics is talking about the same two values and not any other values.

2. If we have only two values, we have to use one and the other and not one and the another.
scio me nihil scire
Join the discussion

• Page 1 of 1