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Question
9 cones are lying inverted on a table. 2 of them contain balls, but 7 of them are empty. What is the probability of getting a ball if one of the cones is opened randomly?
A
${2/9}$.
B
$3/9$.
C
$4/9$.
D
$7/9$.
Soln.
Ans: a
Ans: a
Chances favoring a ball are 2, whereas the total chances are 9. The probability is 2/9 = ${2/9}$.