Portada del sitio > Recursos GMAT > GMAT QUANTITATIVE QUESTION > Data Sufficiency > Probability > **In a certain game only one player can win and only one player always (...)**

# In a certain game only one player can win and only one player always eventually wins. James, Austin, and Katelyn play this game together 3 times in a row. What is the probability that Katelyn wins at least one of the 3 games.?

Difficulty: 600-700 Level, Probability, Data Sufficiency (DS)

Lunes 25 de julio de 2022, por

In a certain game only one player can win and only one player always eventually wins. James, Austin, and Katelyn play this game together 3 times in a row. What is the probability that Katelyn wins at least one of the 3 games.?

(1) The probability that either James or Austin wins the game is 3/4

(2) James and Katelyn have an equal probability of winning the game.

claudio hurtado maturana

mathematical reasoning consultant

TUTORIALS GMAT MATH, GRE MATH, SAT MATH

Private lessons GMAT QUANT GRE QUANT SAT QUANT

Classes group of 4 students GMAT QUANT GRE QUANT SAT QUANT

Distance learning courses GMAT QUANT GRE QUANT SAT QUANT

Coach GMAT QUANT

Coach GRE QUANT

Coach SAT QUANT

Website http://www.gmatchile.cl

Email clasesgmatchile@gmail.com

Skype: clasesgmatchile@gmail.com

Address Avenida Hernando de Aguirre 128 Of 904, Providencia, Santiago Chile.

¿Un mensaje, un comentario?

EXPLANATION:

Probability that Katelyn wins atleast 1 game=1-(Katelyn wins none of the games)

Statement 1:The probability that either James or Austin wins the game is 3/4.

this means this is the probability of Katelyn loosing a game.

This means we can calculate the required prob.

Sufficient

Statement 2: James and Katelyn have an equal probability of winning the game.

But we dont have the numerical value of their winning the game.

Insufficient.

Answer: A