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Question: There are 200 questions on a 3-hour examination . Among these questions 50 are mathematics problems. It is suggested that twice as much time be spent on each math problem as for each other question. How many minutes should be spent on mathematics problem
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Question: There are 200 questions on a 3-hour examination . Among these questions 50 are mathematics problems. It is suggested that twice as much time be spent on each math problem as for each other question. How many minutes should be spent on mathematics problem
Question 1: There are 200 questions on a 3-hour examination . Among these questions 50 are mathematics problems. It is suggested that twice as much time be spent on each math problem as for each other question. How many minutes should be spent on mathematics problem
View topic: বিন্যাস, সমবেশ ও সম্ভাব্যতা (Permutation, Combination and Probability)
32
72
60
100
Source: Bangladesh Bank - Assistant Director - 2009
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Answer: 72
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A bag contains 4 white , 5 red and 6 blue balls. Three balls are drawn at rand dom from the bag .The probability that all of them are red.is :
In a box, there are 8 red, 7 blue, and 6 green balls. One ball is picked up randomly , what is the probability that it is neither red nor green ?
In a container , there are 2 green marbles and 2 red marbles. You randomly pick the marbles. what is the probability that both of them are green?
14 জন খেলোয়াড়ের মধ্যে থেকে নির্দিষ্ট একজন অধিনায়কসহ 11 জনের একটি ক্রিকেট দল কতভাবে বাছাই করা যাবে?
A fair coin is thrown in the air four times. If the coin lands with the head up on the first three tosses, what is the probability that the coin will land with the head up on the fourth toss ?
What is the probability that product of two integers (not necessarily different integers ) randomly selected from the numbers 1 to 20, inclusive , is odd ?
একটি থলিতে ৬টি নীল বল, ৪টি সাদা বল এবং ১০ টি কালো বল আছে। দৈবভাবে একটি বল তুললে সেটি সাদা না হবার সম্ভবনা কত?
12 marbles are selected at random form a large collection of white , red, green and yellow marbles . The number of marbles of each color is unlimited. Find the probability that the selection contains at least one marble of each color ?
The probability of rolling any number of an wighted 6-sided die, with faces numbered 1 through 6, is directly proportional to the number rolled. What is the probability of getting 5, if the die is rolled only once?
একটি মুদ্রা ২ বার নিঃক্ষেপ করলে অন্তত ১ বার Head পড়ার সম্ভবনা কত?
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| Topic
English Literature
English Proverbs
নৈতিকতা, মূল্যবোধ ও সুশাসন
Synonyms and Antonyms
Tense
Degrees of Comparison
পুরস্কার ও সম্মাননা
সংবিধান
দশমিক-ভগ্নাংশ (Decimal Fraction)
পরিমিতি (Mensuration)
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