গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৫৭২১–১৫৭৪০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- Two trains A and B are moving in the same direction. A has speed of 8 km/h and B has speed of 13 km/h. What is relative speed of B with respect to A? MCQ
- The speed of a boat down the stream is 125% of the speed in still water. If the boat takes 30 minutes to cover 20 km in still water, then how much time (in hours) will it take to cover 15 km upstream? MCQ
- The ratio between the speeds of two buses is 5 : 6. If the second bus runs 450 km in 5 hours, then the speed of the first bus is: MCQ
- A train is moving at a speed of 132 km/hour. If the length of the train is 110 meters, how long will it take to cross a railway platform 165 meters long. MCQ
- A boat goes 10 km upstream in 50 minutes, and the speed of the stream is 3 kmph. Find the speed of the boat in still water (in km/h). MCQ
- Excluding stoppages, a train travels at 72 km/h and including stoppages, its average speed is 60 km/h. For how many minutes does the train stop per hour? MCQ
- What is the value of (10P1 × 5P3). MCQ
- If nC7 = nC5 , then find the value of n. MCQ
- What is the probability of getting a sum of 9 when a die is thrown twice? MCQ
- In how many ways can 8 football players be divided into two teams with an equal number of players? MCQ
- In a lottery, there are 8 prizes and 12 blanks. A lottery is drawn at random. What is the probability of getting a prize? MCQ
- In how many ways can the letters of the word 'TRIANGLE' be arranged, if the vowels always stay together? MCQ
- The ratio of the number of red balls to yellow balls to green balls in an urn is 3 : 4 : 5. What is the probability that a ball chosen at random from the urn is a red ball? MCQ
- In how many different ways can a committee of 3 members be selected from 5 people if a particular person must always be included in the committee? MCQ
- In how many ways can all the letters of the word 'LEADER' be arranged? MCQ
- The probability that a card drawn from a pack of 52 cards will be a diamond or a king is: MCQ
- How many 3-digit numbers can be formed using the digits 3, 4, 5, 6 and 7 without repetition? MCQ
- In how many ways can 5 books be selected from 12 books, with 2 particular books always left out? MCQ
- A bag contains 7 red and 9 green marbles. One marble is drawn at random. What is the probability that the marble drawn is not red? MCQ
- If the chairperson's seat is fixed, in how many ways can 6 people be seated at a circular table? MCQ