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Question: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ?
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Question: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ?
Question 1: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5 ?
View topic: বিন্যাস, সমবেশ ও সম্ভাব্যতা (Permutation, Combination and Probability)
1/2
9/20
44990
8/15
Source: এক্সিকিউটিভ অফিসার (সাধারণ) ১৮.১০.২০১৯
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Answer: 9/20
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একটি গোল মুদ্রা টেবিলে রাখা হল । এই মুদ্রার চারপাশে একই মুদ্রা কতটি রাখা যেতে পারে যেন তারা মাঝের মুদ্রাটিকে ও দু'প্রাশের দুটি মুদ্রাকে স্পর্শ করে ?
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উপন্যাস
ভগ্নাংশ (Fraction)
Spelling Correction
বাংলা সাহিত্যে প্রথম
বিরাম চিহ্ন বা যতি চিহ্ন বা ছেদ চিহ্ন
শব্দের প্রকারভেদ ও উৎস
Affirmative and Negative Agreement
বাংলাদেশ এর ক্ষুদ্র নৃগোষ্ঠী
ভাষা আন্দোলন ও মুক্তিযুদ্ধভিত্তিক সাহিত্য
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