গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৬০০১–১৬০২০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- Two dice are rolled. What is the probability that the sum is 7? MCQ
- How many ways can the letters in "TRIANGLE" be arranged if vowels must occupy odd positions? MCQ
- A committee of 4 people is to be formed from 6 men and 4 women. How many ways can this be done if exactly 2 must be women? MCQ
- How many 4-letter words can be formed using the letters A, B, C with repetition allowed? MCQ
- A team of 5 players is to be selected from 7 forwards and 4 defenders. How many ways can this be done if exactly 3 forwards must be selected? MCQ
- A fair coin is tossed 5 times. What is the probability of getting exactly 3 heads? MCQ
- How many distinct permutations can be formed with the letters of “BALLOON”? MCQ
- A password consists of 2 letters (A-Z only) followed by 2 digits (0-9).
How many such passwords can be formed if no repetition is allowed? MCQ - In how many ways can 5 different colored flags be arranged on a pole? MCQ
- A 4-digit number is formed using the digits 1 to 7 without repetition. What is the probability that the number is even? MCQ
- In how many ways can 3 boys and 3 girls be arranged in a line if all boys must stand together? MCQ
- An urn contains 2 red, 3 green, and 2 blue balls. If 2 balls are drawn at random, find the probability that neither ball is blue. MCQ
- What is the probability that a randomly chosen 4-digit number has all distinct digits? MCQ
- The probability that a card drawn from a pack of 52 cards will be a diamond or a king is - MCQ
- From a group of 10 people, how many ways can a president, vice-president, and secretary be chosen? MCQ
- 'A' can do a work in 10 days, and 'B' in 15 days. They work together for 4 days. How much of the work is left? MCQ
- If 5 workers can paint a house in 8 hours, how long would it take 20 workers to paint the same house? MCQ
- 5 pumps working 6 hours a day can empty a tank in 3 days. How many hours a day must 3 pumps work to empty the tank in 2 days? MCQ
- If A and B can complete a work together in 10 days, B and C together in 15 days, and A and C together in 12 days, then in how many days can B alone complete the work? MCQ
- 15 workers can build 45 chairs working 6 hours per day. How many extra workers are required to produce 60 chairs working 4 hours per day? MCQ