গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
৩১৮১–৩২০০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The least number of complete years in which a sum of money put out at 21% compound interest will be more than doubled is:
MCQ - The compound interest on a certain sum for 2 years at 5% per annum is Tk. 820. The simple interest on the same sum for half the time at double the rate percent per annum is:
MCQ - A train passes a man at 110 kmph running towards the train at the speed of 10 kmph. If it took 3 seconds to cross the man, what would be the length of the train? MCQ
- An aeroplane covers a certain distance at a speed of 250 kmph in 6 hours. To cover the same distance in 100 minutes, it must travel at a speed of- MCQ
- A train passes two bridges of length 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is- MCQ
- A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is: MCQ
- Maruf is travelling on his cycle and he calculated to reach point A at 3 p.m. if he travels at 10 kmph, he will reach there at 1 p.m. if he travels at 15 kmph. At what speed must he travel to reach A at 2 p.m. MCQ
- The ratio between the speeds of two trains is 5 : 8. If the second train runs 600 km in 5 hours, then the speed of the first train is - MCQ
- Speed of a boat in standing water is 18 kmph and the speed of the stream is 3 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is- MCQ
- The ratio between the speeds of a bus and bike is 5 : 8. If the bus travels 120 km in 2 hours, find the speed of the bike. MCQ
- A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km and 11 km per hour respectively. What is the distance between them after 6 minutes? MCQ
- A man can row upstream at 10 kmph and downstream at 20 kmph. Find the man's rate in still water and the rate of the stream. MCQ
- A man walk at a speed of 9 km/h. After every kilometer, he takes a rest of 4 minutes. How much time will he take to cover a distance of 6 km? MCQ
- A boat can travel 48 km upstream in 6 hours. If the speed of the stream is 2 km/hr, how much time will the boat take to cover a distance of 120 km downstream? MCQ
- A train 250 meters long is running at a speed of 90 km/h. How long will it take to cross a platform 150 meters long? MCQ
- Over a span of 9 hours, a man traveled 61 km, part of it on foot at 4 km/hr and part by bike at 9 km/hr. What distance did he walk? MCQ
- Rahman is a boatman. He can row a boat at the speed of 5 km/hr upstream and 15 km/hr downstream. Find the speed of the stream. MCQ
- Three unbiased coins are tossed. What is the probability of getting at least 2 heads? MCQ
- 7Pr = 210 and 7Cr = 35 then what is the value of r? MCQ
- Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even? MCQ