AP EAMCET20228 Jul 2022Morning ShiftMathematicsProbabilityActual
A special lottery is to be held to select a student who will live in the only deluxe room available in a hostel. 100 III 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
Options
- A1 8
- B2 9
- C2 7
- D3 8
Correct answer
D. 3 8
Step-by-step solution
Number of slip for III year student =3 100=300 Number of slip for II year student =2 150=300 Number of slip for I year student =1 200=200 Required probability = 300 300+300+200 = 300 800 = 3 8