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

The game of blackjack is played with a deck consisting...

Expert replies
Post new topic Post Reply
Subscribe topic
Previous Topic Next Topic
Moderator
Posts: 2749
Joined: Sun Oct 29, 2017 2:08 pmFollowed by: 2 members
by AAPL » Fri Dec 29, 2017 7:20 am
The game of blackjack is played with a deck consisting of 13 cards ( one of each of the numbers 2-10, one jack, one queen, one king and one of ace) in each of fours suits: clubs, diamonds, hearts, and spades.

In a game of blackjack, if your first card is spade, what are the odds that it is an ace?

A. 1/52
B. 1/26
C. 1/13
D. 1/4
E. 5/13

The OA is C.

I don't have clear this PS question, the correct answer should be option D, because there are 4 aces only. I appreciate if any expert explain it for me. Thank you so much.
Top
Join the discussion
Source: — Problem Solving |
User avatar
Legendary Member
Posts: 2663
Joined: Wed Jan 14, 2015 8:25 amFollowed by: 128 members
Location: Boston, MA
Thanked: 1153 times
GMAT Score:770

by DavidG@VeritasPrep » Sun Dec 31, 2017 3:48 am
AAPL wrote:The game of blackjack is played with a deck consisting of 13 cards ( one of each of the numbers 2-10, one jack, one queen, one king and one of ace) in each of fours suits: clubs, diamonds, hearts, and spades.

In a game of blackjack, if your first card is spade, what are the odds that it is an ace?

A. 1/52
B. 1/26
C. 1/13
D. 1/4
E. 5/13

The OA is C.

I don't have clear this PS question, the correct answer should be option D, because there are 4 aces only. I appreciate if any expert explain it for me. Thank you so much.
We know that first card is a spade. So imagine a deck consisting solely of this suit. There'd be 13 cards. 1 of them would be an ace. So the probability of selecting an ace, given that we've selected a spade, would be 1/13, or C

You may have inadvertently rewritten the question in your head. If the question had been "If the first card selected is an ace, what is the probability that this card is also a spade?" then the answer would have been 1/4. (Imagine a deck that consisted solely of aces. Now you've got a deck consisting of 4 cards, 1 of which is a spade.)
Veritas Prep | GMAT Instructor

Veritas Prep Reviews
Save $100 off any live Veritas Prep GMAT Course
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 8246
Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members
Location: Los Angeles, CA
Thanked: 43 times

by Scott@TargetTestPrep » Sun Aug 25, 2019 5:42 pm
AAPL wrote:The game of blackjack is played with a deck consisting of 13 cards ( one of each of the numbers 2-10, one jack, one queen, one king and one of ace) in each of fours suits: clubs, diamonds, hearts, and spades.

In a game of blackjack, if your first card is spade, what are the odds that it is an ace?

A. 1/52
B. 1/26
C. 1/13
D. 1/4
E. 5/13

The OA is C.

I don't have clear this PS question, the correct answer should be option D, because there are 4 aces only. I appreciate if any expert explain it for me. Thank you so much.
Since there are 13 spades and one of them is the ace of spades, the probability of getting an ace when a spade is selected is 1/13.

[Note: The question stem asks for odds, but the answer choices are expressed as probabilities.].

Answer:C

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage
Top
Join the discussion

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 16206
Joined: Mon Dec 08, 2008 6:26 pmFollowed by: 1268 members
Location: Vancouver, BC
Thanked: 5254 times
GMAT Score:770

by Brent@GMATPrepNow » Mon Aug 26, 2019 5:33 am
AAPL wrote:The game of blackjack is played with a deck consisting of 13 cards ( one of each of the numbers 2-10, one jack, one queen, one king and one of ace) in each of fours suits: clubs, diamonds, hearts, and spades.

In a game of blackjack, if your first card is spade, what are the odds that it is an ace?

A. 1/52
B. 1/26
C. 1/13
D. 1/4
E. 5/13
Once we know that the card is a spade, we know that it must me one of the following 13 cards:
Ace of spades
2 of spades
3 of spades
4 of spades
5 of spades
6 of spades
7 of spades
8 of spades
9 of spades
10 of spades
Jack of spades
Queen of spades
King of spades

Each of the 13 possibilities above is equally likely,
So, P(card is Ace of spades) = 1/13

Answer: C

Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
Image
Top
Join the discussion