A bag contains ten black marbles, twenty white marbles, and five grey marbles. You pick one without looking. What is the probability that the marble will be either white OR black?
A 6/35
B 10/35
C 6/7
D 20/35
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A bag contains ten black marbles, twenty white marbles, and five grey marbles. You pick one without looking. What is the probability that the marble will be either white OR black?
A 6/35
B 10/35
C 6/7
D 20/35
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Answer:
Hence, Probability of getting a white or black marble is 6/7
Step-by-step explanation:
Solution:
Total number of marbles = 10+20+5 =35 No. g Marbles that are white or black = 10+20 = 30 Probability of getting a white or black ball
= No. of white or black marble
_____________________
Total No. of marbles
= 30/35 = 6/7
Hence, Probability of getting a white or black marble is 6/7
Question:
A bag contains ten black marbles, twenty white marbles, and five grey marbles. You pick one without looking. What is the probability that the marble will be either white OR black?
A 6/35
B 10/35
C 6/7
D 20/35
ANSWER:
List down the given,
Count the number of white and black marbles,
10 + 20 = 30
Now solve Probability (P) using,
* as always, double check my answers for errors or carelessness.
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