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
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.

probability 3

Expert replies
by Gurpinder » Fri Jul 30, 2010 8:31 am
At a certain pizzeria, 1/6 of the pizzas sold in a week were cheese and 1/5 of OTHER were peproni. If brandon randomly ordered a pizza, what is the probability that it will be peproni?


the way i tackled this problem was say there were 30 pizzas sold. then 5 would be cheese and 6 would be peproni.

now the probability of peproni would be 6/30 or 1/5. but the oa is: [spoiler]1/6[/spoiler]????

can someone explain whether my approach is right or am i losing it?
Last edited by Gurpinder on Fri Jul 30, 2010 12:19 pm, edited 1 time in total.
Join the discussion
Source: — Problem Solving |

by Brian@VeritasPrep » Fri Jul 30, 2010 11:30 am
HI Gurpinder:

Just a hunch, but did you misread (or mistype) the question? That OA works if the question says:

1/6 of the pizzas sold were cheese and 1/5 of the OTHER pizzas were pepperoni. Then you'd have, out of 600 pizzas total:

100 cheese, 500 "other"

Of those 500, 1/5 are pepperoni, so 100 are pepperoni

and then 100 pepperoni over 600 total = 1/6

That may be what happened...and is a great reminder to everyone to read carefully because one small word can change the entire problem!
Brian Galvin
GMAT Instructor
Chief Academic Officer
Veritas Prep

Looking for GMAT practice questions? Try out the Veritas Prep Question Bank. Learn More.
Join the discussion

by Gurpinder » Fri Jul 30, 2010 11:41 am
Brian@VeritasPrep wrote:HI Gurpinder:

Just a hunch, but did you misread (or mistype) the question? That OA works if the question says:

1/6 of the pizzas sold were cheese and 1/5 of the OTHER pizzas were pepperoni. Then you'd have, out of 600 pizzas total:

100 cheese, 500 "other"

Of those 500, 1/5 are pepperoni, so 100 are pepperoni

and then 100 pepperoni over 600 total = 1/6

That may be what happened...and is a great reminder to everyone to read carefully because one small word can change the entire problem!
Hey Brian,

Yes, you are right. I ignored the word other.

Sorry.

And now because of that OTHER word, I get it where I was going wrong.
Join the discussion

by Brian@VeritasPrep » Fri Jul 30, 2010 12:13 pm
Thanks, Gurpinder - it's an easy mistake to make (I've done it plenty!), but hopefully the fact that you've done it (publicly, even) and learned from it means that you're that much more careful on test day!

And it's not a bad habit to be in, to look at how they could change just one word and elicit an entirely different answer. I'd recommend to anyone studying for this test to analyze some questions and ask:

How could they word this differently to arrive at choice (A/B/C/D/E - any of the wrong answers)?

In doing so, you'll get some great insight into how they write these.
Brian Galvin
GMAT Instructor
Chief Academic Officer
Veritas Prep

Looking for GMAT practice questions? Try out the Veritas Prep Question Bank. Learn More.
Join the discussion