Probability - Arithmetic Aptitude Questions and Answers

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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?

$\frac { 1 } { 10 }$

$\frac { 2 } {5}$

$\frac { 2 } {7}$

$\frac { 5 } {7}$

Answer : Option C

Explanation :

p (getting a prize) = $\frac { 10 } { (10+25) }$ = $\frac { 10 } {35 }$ = $\frac { 2 } {7}$

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