Subject
Bank Exam
Topic
City Bank Ltd. - Probationary Officer - 2016
Certain number of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a girl hits a goal is 7/10 whereas the probability that a boy hist a goal is 1/5. What will be the probability that not a goal is hit but it is also hit by a boy ?
Certain number of children were playing a game of football. There was a trial taking place on the field. In this trial the probability that a goal is scored is 2/5. The probability that a girl hits a goal is 7/10 whereas the probability that a boy hist a goal is 1/5. What will be the probability that not a goal is hit but it is also hit by a boy ?
ক)
14/50খ)
7/50গ)
2/5ঘ)
2/25Explanation
Solution: অনুবাদঃ গোল হবার সম্ভাবনা 2/5. আর Girl এবং Boy এর গোল করা সম্ভাবনা যথাক্রমে 7/10 এবং 1/5 হলে একটি গোল হবে এবং Boy গোলটি করবে এ ধরণের সম্ভাবনা কত ? দেয়া আছে, একজন Girl এর Goal করার সম্ভাব্যতা = 7/10. একজন Boy এর Goal করার সম্ভাব্যতা = 1/5 এবং যেকোন একজন দ্বারা এর Gola করার সম্ভাব্যতা = 2/5 যেহেতু Goal হবে এবং তা একজন ছেলে করবে এমন সম্ভাব্যতা =Related questions
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