252
792
224
120
Source: ৩৬ তম বিসিএস( প্রিলিমিনারি) (08-01-2016)
Answer: 120
Explanation:
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You should read | Questions
একটি মুদ্রা ২ বার নিঃক্ষেপ করলে অন্তত ১ বার Head পড়ার সম্ভবনা কত?
A husband and wife appear in an interview for two vacancies in the same post. The probability of husband,s selection is 1/7 and that of wife,s is 1/5. What is the probability that none of them will be selected?
At a party , everyone shook hands with everybody else. There were 66 handshakes . How many people were there in the party ?
A beg contains 2 red, 3 green and 2 blue balls. If two balls are drawn at random, what is the probability that none of the balls drawn is blue ?
A jogger running at 9 km/hr alongside a railway track is 240 meters ahead of the engine of a 120 meters long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger?
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
A zookeeper counted the heads of animal and found it to be 80. When he counted the legs of animals, he found the number to be 260. If the zoo had either Pigeons or horses, how many horses were there in the zoo ?
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 ?
আবহাওয়া অফিসের রিপোর্ট অনুযায়ী ২০২২ সালে মে মাসে চতুর্থ সপ্তাহে বৃষ্টি হয়েছে মোট ৫ দিন। ঐ সপ্তাহে রবিবারে বৃষ্টি না হওয়ার সম্ভাবনা কত?
A bag cotains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is -
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You should read | Topic
English Proverbs
সন্ধি বিচ্ছেদ
ইনপুট ও আউটপুট ডিভাইস
প্রতিশব্দ বা সমার্থক শব্দ
অসমতা (Inequality)
উপন্যাস
পরিমিতি (Mensuration)
সাধু ও চলিত রীতি
One Word Substitution
সময়, দূরত্ব ও গতিবেগ (Time, distance & speed)
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