Subject
Bank Exam
Topic
First Security Islami Bank Ltd. 2009 (PO)
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory, There are 100 seniors, 150 juniors, and 200 sophomores who applied. Each senior’s name is placed in the lottery 3 times; each junior’s name, 2 times; and each sophomore’s 1 time. What is the probability that a senior’s name will be chosen?
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory, There are 100 seniors, 150 juniors, and 200 sophomores who applied. Each senior’s name is placed in the lottery 3 times; each junior’s name, 2 times; and each sophomore’s 1 time. What is the probability that a senior’s name will be chosen?
ক)
1/8খ)
2/9গ)
2/7ঘ)
3/8Explanation
There are 100*3=300 senior There are 150*2=300 junior There are 200*1=200 sophomore total student=(300+300+200)=800 Prob of selecting a senior = 300/800=3/8Related questions
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