ctets15p2 q55

55Natural numbers 4 to 15 are written on different slips (one number on one slip), kept in a box and mixed well. Renu picks up one slip from the box without looking into it. What is the probability that this slip bears a prime number?

A
B
C
D

Option : A
Explanation : Total number of outcomes = 12
Favourable number of outcomes (to be a prime number) = 4 (i.e 5, 7, 11, 13)

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