A special lottery is to be held to select a student who will live in the only deluxe room available in a hostel. 
year, 150 II year and 200 I year students have applied for the room. Each III year student's name is placed in the lottery 3 times, each II year student's name 2 times and I year student's name 1 time. The probability that a III year student gets the room is
Text Solution
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Number of slip for III year student 
Number of slip for II year student 
Number of slip for I year student 
Required probability 
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