গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
৩৪৪১–৩৪৬০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- A sum of money invested at compound interest triples itself in 3 years. In how many years will it become 27 times itself? MCQ
- If the simple interest on 6,000 Taka for 3 years is 1,800 Taka, what is the rate of interest per annum? MCQ
- The simple interest on a certain sum of money at 4% per annum for 3 years is 1,200 Taka. The compound interest on the same sum for the same period and at the same rate is - MCQ
- If 6,250 Taka is invested at 12% simple interest, how much time will it take for the interest to reach 3,000 Taka? MCQ
- A sum of 12,000 Taka is lent out in two parts. One part is lent at 8% simple interest and the other at 10% simple interest. If the total annual interest is 1,080 Taka, how much is lent at 8%? MCQ
- A motorboat, whose speed in 20 km/h in still water goes 40 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream is- MCQ
- The length of the bridge, which a train 150 meters long and travelling at 45 km/h can cross in 30 seconds, is- MCQ
- Walking 3/5 of his normal speed, Sami is 20 minutes late in reaching his coaching. The usual time taken by him to cover the distance between his home and coaching ? MCQ
- Two trains running in opposite directions cross a man standing on the platform in 42 seconds and 28 seconds respectively and they cross each other in 35 seconds. The ratio of their speeds is MCQ
- A man rows downstream at 35 km/h and rows upstream at 25 km/h. At what speed can he row in still water? MCQ
- On a river, C is the mid-point between two points A and B on the same bank of the river. A boat can go from A to C and back in 14 hours and from A to B in 24 hour. How long it would take to go from B to A? MCQ
- A car covers a distance of 15 km in 15 minutes. If its speed is decreased by 10 km/h, then the time taken by it to cover the distance of 20 km will be- MCQ
- A 100 meters long train is running at a speed of 90 km per hour. It will cross a railway platform 200 m long in- MCQ
- After traveling 35km, a train meets with an accident and travels at (3/4)th of the usual Speed and reaches 45 min late. Had the accident happened 15km further on it would have reached 30 min late. Find the usual Speed? MCQ
- Two bicycles start at the same time from points A and B, moving toward each other. If the distance between A and B is 125 km and their speeds are 14 km/h and 11 km/h respectively then after how much time will they meet each other? MCQ
- A boatman goes 1 km against the current of the stream in 1/2 hour and goes 1 km along the current in 20 minutes. How long will it take to go 5 km in stationary water? MCQ
- Two trains of equal length are running on parallel lines in different direction at 40 km/h and 32 km/h. The faster train passes the slower train in 36 seconds. The length of each train is- MCQ
- Working 10 hours a day, Polas can Complete a work in 4 days. Working 3 hours a day, Mahin can complete the same work in 20 days. Working 4 hours a day, they can jointly complete the work in MCQ
- A train covers half of his journey at 60 km/h and the remaining half at 40 km/h. It's average speed is- MCQ
- A person can swim in still water with a speed of 12 km/h. If the speed of the stream is 3 km/h, what will be the time taken by the person to go 54 km upstream? MCQ