গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৬৮০১–১৬৮২০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- According to meteorological records, it rained on 21 days in the month of June last year. What is the probability that it will rain on fourth of June this year? MCQ
- Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is : MCQ
- A question paper has two parts, A and B, each containing 10 questions. If a student has to choose 5 from part A and 8 from part B, in how many ways can he choose the questions? MCQ
- A seven-digit number is formed using the digit 3, 3, 4, 4, 4, 5, 5. The probability, that number so formed is divisible by 2, is: MCQ
- Three gentlemen and two ladies are candidates for two vacancies. A voter has to vote for two candidates. In how many ways can one cast his vote? MCQ
- If x and y are two positive integers and x + y = 4 then, what is the probability of x equals to 1? MCQ
- Five children, Shahin, Masud, Jayed, Raj, and Alom, sit randomly in five chairs in a row. What is the probability that Raj and Masud sit next to each other? MCQ
- How many numbers are there between 100 and 1000 inclusive, having at least one of their digits 7? MCQ
- From a pack of 52 cards, two cards are drawn at random. What is the probability of getting two queens? MCQ
- In how many different ways can the letters of the word ENGINEERING be arranged? MCQ
- An integer n between 1 and 100, inclusive, is to be chosen at random. What is the probability that n(n+1) will be divisible by 5? MCQ
- A box contains 2 white balls, 3 black balls and 4 red balls. In how many ways can 3 balls be drawn from the box, if at least one white ball is to be included in the draw? MCQ
- A small company employs 3 men and 5 women. If a team of 4 employees is to be randomly selected to organize the company retreat, what is the probability that the team will have exactly 3 women? MCQ
- How many 3-digit numbers can be formed from the digits 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated? MCQ
- If a certain coin is flipped, the probability that the coin will land heads is 1/2. If the coin is flipped 4 times, what is the probability that it will land heads up on the first 3 flips and not on the last flip? MCQ
- In how many ways, a committee of 5 members be selected from 7 men and 5 ladies, consisting of 3 men and 2 ladies? MCQ
- In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of not getting a prize? MCQ
- In how many different ways can the letters of the word 'Binary' be arranged so that the vowels always come together? MCQ
- If 6 workers can build a wall in 10 days, how many workers would be needed to build the same wall in 5 days? MCQ
- 210 men working 12 hours a day can finish a job in 18 days. How many men are required to finish the job in 20 days working 14 hours a day? MCQ