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07 Apr 2023, 01:30
Kudos
Bookmarks
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
45% (02:08) correct
55%
(02:06)
wrong
based on 137
sessions
History
Date
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Not Attempted Yet
A player throws a fair six-sided die. If a prime number is obtained, he wins an amount equal to the number rolled times 100 dollars, but if a prime number is not obtained, he loses an amount equal to the number rolled times 100 dollars. What is the provability that after two throws the player wins 400 dollars?
A. 1/10
B. 1/12
C. 1/18
D. 1/24
E. 1/36
A. 1/10
B. 1/12
C. 1/18
D. 1/24
E. 1/36
07 Apr 2023, 02:52
Kudos
Bookmarks
Bunuel
The favorable pairs of (Dice 1, Dice 2) are (1,5), (2,2), and (5,1).
Total pairs = 36
Required Probability = 3/36 = 1/12
Option B
07 Apr 2023, 03:07
Kudos
Bookmarks
A player throws a fair six-sided die. If a prime number is obtained, he wins an amount equal to the number rolled times 100 dollars, but if a prime number is not obtained, he loses an amount equal to the number rolled times 100 dollars. What is the provability that after two throws the player wins 400 dollars?
Possible Prime number's on rolling a dice are - 2, 3 and 5
But to win 400 dollars, the possible combinations are - (5,1 or 1,5) and (2,2)
Total combinations possible are 6*6 = 36
Therefore, the required probability = 3/36 = 1/12
Answer B
Possible Prime number's on rolling a dice are - 2, 3 and 5
But to win 400 dollars, the possible combinations are - (5,1 or 1,5) and (2,2)
Total combinations possible are 6*6 = 36
Therefore, the required probability = 3/36 = 1/12
Answer B
