গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৫৯৮১–১৬০০০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- A man completes a journey in 5 hours. He travels the first half of the journey at the rate of 20 km/hr and the second half at the rate of 30 km/hr. Find the total journey in km. MCQ
- The ratio between the speeds of two trains is 5 : 6. If the second train runs 450 km in 5 hours, then the speed of the first train is: MCQ
- Fahim rows a boat at 8 km/h in still water. He finds that it takes him 2 hours longer to row upstream than downstream for a certain distance. If the speed of the stream is s km/h, and the distance is 30 km, find s. MCQ
- Two trains start from station P and Q and travel towards each other at speeds of 60 km/hr and 80 km/hr respectively. At the time of their meeting, the second train has traveled 80 km more than the first. The distance between P and Q is: MCQ
- A man on tour travels first 60 km at 20 km/hr and the next 60 km at 30 km/hr. The average speed for the first 120 km of the tour is : MCQ
- A man walk at a speed of 10 km/h. After every 3 kilometers, he takes a rest of 5 minutes. How much time will he take to cover a distance of 15 km? MCQ
- In a boat race, a person rows a boat 8 km upstream and returns to the starting point in 3 hours. If the speed of the stream is 2 km/hr, find the speed of the boat in still water. MCQ
- A thief is noticed by a policeman from a distance of 300 meters. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km/hr and 12 km/hr respectively. What is the distance between them after 6 minutes? MCQ
- A man rows to a place 30 km distant and comes back in 8 hours. He finds that he can row 5 km with the stream in the same time as 3 km against the stream. The rate of the stream is: MCQ
- The speed of three cars is in the ratio of 3 : 4 : 5. The ratio of the times taken by these cars to travel the same distance is- MCQ
- A fair die is thrown once. What is the probability of getting a prime number? MCQ
- How many ways can 10 letters be posted in 5 post boxes, if each of the post boxes can take more than 10 letters? MCQ
- A bag contains 3 red balls and 2 blue balls. If two balls are drawn without replacement, what is the probability that both are red? MCQ
- Find the total number of distinct vehicle numbers that can be formed using two letters followed by two numbers. Letters need to be distinct. MCQ
- In how many ways can 5 people be seated around a circular table? MCQ
- A committee of 3 men and 2 women is to be formed from 6 men and 4 women. How many ways can this be done? MCQ
- A card is drawn from a deck of 52 cards, then replaced, and another card is drawn. What is the probability that both are aces? MCQ
- In how many ways can 12 identical balls be distributed among 4 distinct boxes such that each box contains at least one ball? MCQ
- A box contains 10 red marbles and 15 blue marbles. If 5 marbles are drawn without replacement, what is the probability of getting exactly 2 red marbles? MCQ
- Four boys and four girls are to be seated alternately around a round table. In how many different ways can this be done? MCQ