গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
৪০২১–৪০৪০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- A train 900 meters long is running at a speed 78 kmph. If it crosses a tunnel in 1 min, then the length of the tunnel is- MCQ
- Two trains travel in opposite directions at 36 km/hr and 45 km/hr and a man sitting in slower train passes the faster train in 8 seconds. The length of the faster train is: MCQ
- With an average speed of 50 km/hr, a train reaches its destination in time. If it goes with an average speed of 40 km/hr, it is late by 24 min. The total journey is: MCQ
- A person rowing against the current can go 2 km per hour. If the speed of the current is 3 km per hour, how much time will he take to cover 32 km, rowing along the current? MCQ
- A man travels 50 km at speed 25 km/hr and next 40 km at 20 km/hr and there after travel 90 km at 15 km/hr. His average speed is: MCQ
- Two trains start at the same time from Dhaka and Rangpur and proceed towards each other at 80 kmph and 95 kmph respectively. When they meet, it is found that one train has travelled 30 km more than the other. Find the distance between Dhaka and Rangpur. MCQ
- A boat can tarvel 36 km upstream in 5 hours. If the speed of the stream is 2.4 kmph, how much time will the boat take to cover a distance of 78 km downstream?(in hours) MCQ
- In covering a certain distance, The speeds of A and B are in the ratio of 3 : 4. A takes 30 minutes more than B to reach the destination. The time taken by A to reach the destination is- MCQ
- If a man goes 24 km downstream in 4 hours and returns against the stream in 12 hours, then the speed of the stream in km/hr is - MCQ
- If a train runs at 40 km/hr, it reaches its destination late by 11 minutes but if it runs at 50 km/hr, it is late by 5 min only. The correct time for the train to complete its journey is: MCQ
- A man can row 6 km/hr in still water. If the speed of the current is 2 km/hr, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance is- MCQ
- A train running at a speed of 90 km/hr crosses a platform double its length in 36 seconds. What is the length of the platform in meters? MCQ
- Saiful traveled 2/3 as km on foot as by water and 1/3 as km on bus as by water. If he covered a total of 48 km, how many km did he travel on foot? MCQ
- A dice is thrown randomly. What is the probability that the number shown on the dice is not divisible by 3? MCQ
- If 3 spiders make 3 webs in 3 days, then 1 spider will make 1 web in how many days? MCQ
- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is: MCQ
- When Rakib, Piyash and Niloy complete a task, Rakib and Piyash together do 70% of the work and Piyash and Niloy together do 50% of the work. who is the most efficient? MCQ
- 18 men bind 900 books in 10 days. Find how many binders will be required to bind 600 books in 12 days? MCQ
- Piyal and Belal together can complete a work in 3 days. They start together but after 2 days, Belal left the work. If the work is completed after two more days, Belal alone could do the work in how many days? MCQ
- Four men and three women can do a job in 6 days. When five men and six women work on the same job, the work gets completed in 4 days. How long will a woman take to do the job, if she works alone on it? MCQ