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.

★★★★★5.0563 reviews
Newsweek Readers’ Choice Awards 2026 winner: Target Test Prep, #1 Test Prep
NEWSWEEK READERS’ CHOICE AWARDS 2026

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

GMATLiveTeach Starts Oct 17
Chris Peckover, Target Test Prep GMAT expert
LIVE ONLINE CLASSES

Get Ready for GMAT Test Day Faster with Live Online Classes

with Chris Peckover, 100th-Percentile GMAT Scorer

Oct 17 · Chris Peckover
Sat · 11:00 AM to 2:00 PM ET
Oct 20 · Chris Peckover
Tue, Thu · 8:00 to 10:00 PM ET
Oct 25 · Josh Braslow
Sun · 1:00 to 4:00 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
EALiveTeachOnDemand 5 seats left Start anytime
EXECUTIVE ASSESSMENT

Target Test Prep EA OnDemand

Self-paced EA prep. Study on your schedule.

Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

165+ EA score guarantee
$05-day trial no automatic billing
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 Start free 5-day trial
Limited cohort · enrollment openTrial includes full course accessTarget 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.

Sentence balancing

Expert replies
by BTGmoderatorRO » Sat Sep 30, 2017 8:10 pm
The traditional treatment of strep infections has been a seven-day course of antibiotics, either penicillin or erythromycin. However, since many patients stop taking those drugs within three days, reinfection is common in cases where those drugs are prescribed. A new antibiotic requires only a three-day course of treatment. Therefore, reinfection will probably be less common in cases where the new antibiotic is prescribed than in cases where either penicillin or erythromycin is prescribed.
Which of the following, if true, most strengthens the argument?

A. Some of the people who are allergic to penicillin are likely to be allergic to the new antibiotic.
B. A course of treatment with the new antibiotic costs about the same as a course of treatment with either penicillin or erythromycin.
C. The new antibiotic has been shown to be effective in eradicating bacterial infections other than strep.
D. Some physicians have already begun to prescribe the new antibiotic instead of penicillin or erythromycin for the treatment of some strep infections.
E. Regardless of whether they take a traditional antibiotic or the new one, most patients feel fully recovered after taking the drug for three days.
qa is e.

What's the best approach to determine the answer? why is option E and A out of the contest in choosing the right answer?
Join the discussion
Source: — Critical Reasoning |

by Vincen » Mon Oct 16, 2017 6:54 am
Statement C also strengthens the argument.

How can I know which one (C or E) most strengthens the argument?

Experts, I would appreciate some help.
Join the discussion

by EconomistGMATTutor » Tue Oct 17, 2017 1:34 pm
A tricky one.

The conclusion: Reinfection will probably be less common in cases where the new antibiotic is prescribed than in cases where either penicillin or erythromycin is prescribed.

The evidence: A new antibiotic requires only a three-day course of treatment. The old one antibiotics requires a seven-day course, but many people stop within 3 days.

We need to strengthen the conclusion, so we need to show that the new treatment is more effective in preventing reinfection in actual practice. It other words, it doesn't matter which antibiotic is "better." The problem with the old treatment is that people stop taking it too soon. Why? Well Choice E gives us a reason: They feel better after only 3 days. Furthermore, Choice E says that they also feel better after only 3 days on the new stuff, but that's okay, because the treatment has run its course.

You're a doctor. You know that with the new stuff, people won't feel better until the treatment has run its course. They're now safe from reinfection. With the old stuff, they will feel better before that has happened. They're not safe. If you, the doctor, choose to use the new stuff, then you agree that Choice E has strengthened the conclusion.

Let me know if you've still got questions.
GMAT Prep From The Economist
We offer 70+ point score improvement money back guarantee.
Our average student improves 98 points.

Image
Join the discussion

by EconomistGMATTutor » Tue Oct 17, 2017 1:36 pm
Regarding Choice C -- as soon as you see that word "other," alarms should go off. Who gives a hoot about other infections? This argument is about strep reinfections.
GMAT Prep From The Economist
We offer 70+ point score improvement money back guarantee.
Our average student improves 98 points.

Image
Join the discussion

by Vincen » Mon Oct 23, 2017 7:19 pm
Thank you so mucho Economist. :D
Join the discussion