Question

The names of 16 students from section A, 18 students from section B and 20 students from section C were selected. The age of all the 54 students was different. Again, one name was selected from them and it was found that it was of section
B. What was the probability that it was the youngest student of the section B?

A 1/15
B 1/13
C 1/18
D 1/17
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