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Question: From a group of 7 men and 6 women, five persons are to be selected to from a committee so that at least 3 men are there on the committee. In how many ways can it be done ?
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Question: From a group of 7 men and 6 women, five persons are to be selected to from a committee so that at least 3 men are there on the committee. In how many ways can it be done ?
Question 1: From a group of 7 men and 6 women, five persons are to be selected to from a committee so that at least 3 men are there on the committee. In how many ways can it be done ?
View topic: বিন্যাস, সমবেশ ও সম্ভাব্যতা (Permutation, Combination and Probability)
564
645
735
756
Source: Bangladesh Bank - Assistant Director - 2011
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Answer: 756
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12টি পুস্তক থেকে 5টি কত প্রকারে বাছাই করা যায় যেখানে 2টি পুস্তক সর্বদাই অন্তর্ভুক্ত থাকবে?
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 person has TK. 950 in 29 notes consisting of TK. 500,100, 50 and 10. How many notes should at least be in TK. 50 ?
A box contains 5 pink , 5 green and 2 yellow balls, Three balls are picked up randomly. What is the probability that none of the ball drawn is green
In a group of buffaloes and ducks, the number of legs is 24 more than twice the number of heads. What is the number of buffaloes?
একটি থলিতে ৬টি নীল বল, ৪টি সাদা বল এবং ১০ টি কালো বল আছে। দৈবভাবে একটি বল তুললে সেটি সাদা না হবার সম্ভবনা কত?
লুপ্ত সংখ্যাটি কত? ৮১, ২৭,--,৩, ১।
When they had a meeting seven company executives __ T, U, V, W, X, Y and Z ___ sit at a rectangular table .Three executives sit along one side of the table , and three sit along the other side, each directly opposite one of the other three. The seventh sits at the head of the table . There is no seat at the foot of the table . Ualways sits in one of te two seats farthest from the head of the table. Y and V always sit next to each other .V never sits next to Z . If Z does not sit at the head of the table, W sits there. If W sits directly opposite T, X must sit next to which of the following excutives?
The probability is 1/2 that a coin will turn up heads on any toss. If the coin is to be tossed three times, what is the probability that on at least one of the tosses the coin will turn up tails?
There are 15 boys and 10 girls in a class. If three students are selected at random , what is the probability that 1 girl and 2 boys are selected?
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Idioms & Phrases
নাটক
ল.সা.গু ও গ.সা.গু (L.C.M and H.C.F)
অর্থনীতি
কারক ও বিভক্তি
অনুকার শব্দ, ধ্বন্যাত্মক শব্দ ও শব্দদ্বৈত
ক্রিয়া ও ক্রিয়ার কাল
সেট (Set)
সাহিত্যিকদের জীবনী, উপাধি ও ছদ্মনাম
শব্দের প্রকারভেদ ও উৎস
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