1/2
9/20
44990
8/15
Source: এক্সিকিউটিভ অফিসার (সাধারণ) ১৮.১০.২০১৯
Answer: 9/20
Explanation:
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লুডু খেলার দুটি ছক্কা একসাথে ফেলে প্রাপ্ত সংখ্যা ২টি যোগ করলে যোগফল ১০ হবার সম্ভবনা কত?
একটি গোলাকার মুদ্রা টেবিলে রাখা হল । এই মুদ্রার চারপাশে একই মুদ্রা কতটি রাখা যেতে পারে যেন মুদ্রাগুলো মাঝের মুদ্রাটিকে এবং তাদের দু'পাশে রাখা দুটি মুদ্রাকে স্পর্শ করে ।
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 hits a goal is 1/5. What will be the probability that not only a goal is hit but it is also hit by a boy?
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?
A jar contains 13 red marbles and 7 green marbles. The probability that a marble selected from the jar at random will be green is___
Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart , is :
In a box there are 10 apples and 2/5th of the apples are rotten . If three apples are taken out from the box, what will be the probability that at least one apple is rotten .
A driver of an auto rickshaw sees a lorry m ahead of him .After 30 seconds the lorry 90 m behind. If the speed of the auto rickshaw is 38 km /hr, then what is the speed of the lorry?
A box contains 4 tennis ball 6 season and 8 dues balls . 3 balls are randomly drawn from the box. What is the probability that the balls are different ?
A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be ----
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You should read | Topic
Clauses and Phrases
বাংলা ভাষার উদ্ভব ও বিকাশ
ঐকিক নিয়ম (Unitary Method)
সংবিধান
Affirmative and Negative Agreement
সূচক ও লগারিদম (Exponents and Logarithms)
দশমিক-ভগ্নাংশ (Decimal Fraction)
সমাস
নৈতিকতা, মূল্যবোধ ও সুশাসন
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