Discussion :: Probability
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In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?
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A.
\( \frac { 1 } { 10 } \) |
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B.
\( \frac { 2 } {5} \) |
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C.
\( \frac { 2 } {7} \) |
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D.
\( \frac { 5 } {7} \) |
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Answer : Option C
Explanation :
p (getting a prize) = \(\frac { 10 } { (10+25) } \)= \(\frac { 10 } {35 } \) =\( \frac { 2 } {7} \)
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