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# PROGRAMA GMAT-GRE-SAT MATEMÁTICA claudio hurtado word problem exercises and answers probability

Lunes 22 de abril de 2019,

Probability N5, N6, N7
1.- From a group of 5 managers (Joon, Kendra, Lee, Marnie and Noomi), 2 people are randomly selected to attend a conference in Las Vegas. What is the probability that Marnie and Noomi are both selected?
(A) 0.1
(B) 0.2
(C) 0.25
(D) 0.4
(E) 0.6
2.The probability of Sam passing the exam is 1/4. The probability of Sam passing the exam and Michael passing the driving test is 1/6. What is the probability of Michael passing his driving test?
A. 1/24.
B. 1/2.
C. 1/3.
D. 2/3.
E. 2/5
3.- If any number from set A is multiplied by any number from set B, what is the probability that the product is a multiple of 4?
A = 21, 22, 23, 24, 25 B = 23, 24, 25, 26, 27
4.- Set A: 1, 3, 4, 6, 9, 12, 15
If three numbers are randomly selected from set A without replacement, what is the probability that the sum of the three numbers is divisible by 3?
A. 3/14
B. 2/7
C. 9/14
D. 5/7
E. 11/14

5.- Vladimir plays a game in which he reveals cards one-at-a-time from the top of a shuffled standard deck of cards (consisting of 52 cards total: 13 in each of the four suits clubs, diamonds, hearts, and spades). If Vladimir reveals a heart, he wins. If he reveals a diamond, the game continues. If he reveals a club or a spade, he loses. What is the probability that Vladimir wins the game?
A. 1/4
B.13/51
C. 4/13
D. 1/3
E. 1/2

6.-All envelope contains eight bills: 2 ones, 2 fives, 2 tens, and 2 twenties. Two bills are drawn at random without replacement. What is the probability that their sum is \$20 or more?

A. 1/4
B. 2/7
C. 3/7
D. 1/2
E. 2/3

Resp: 1/a, 2/d, 3/b, 4/e, 5/a, 6/e

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Imparte claudio hurtado ex docente UC.
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