গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৩৪১–১৮৩৬০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The population of a town was 3600 three years back. It is 4800 right now. What will be the population three years down the line, if the rate of growth of population has been constant over the years and has been compounding annually? MCQ
- Find compound interest on Tk. 8000 at 15% per annum for 2 years 4 months, compounded annually - MCQ
- A motorboat, whose speed is 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is: MCQ
- A train has a length of 150 metres. It is passing a man who is moving at 2 km/hr in the same direction of the train, in 3 seconds. Find out the speed of the train? MCQ
- Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 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
- A man can row three-quarters of a kilometre against the stream in 11(1/4) minutes and down the stream in 7(1/2) minutes. The speed (in km/hr) of the man in still water is - MCQ
- A train having a length of 240 metre passes a post in 24 seconds. How long will it take to pass a platform having a length of 650 metre? MCQ
- A man rows to a place 48 km distant and comes back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is: MCQ
- Two trains, each 500 metre long, are running in opposite directions on parallel tracks. If their speeds are 45 km/hr and 30 km/hr respectively, the time taken by the slower train to pass the driver of the faster one is - MCQ
- A boatman goes 2 km against the current of the stream in 2 hour and goes 1km along the current in 20 minutes. How long will it take to go 5 km in stationary water? MCQ
- The speed of a boat in still water is 22km/hr and the rate of current is 4km/hr. The distance travelled downstream in 24 minutes is: MCQ
- Two trains are running in opposite directions at the same speed. The length of each train is 120 metre. If they cross each other in 12 seconds, the speed of each train (in km/hr) is MCQ
- Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. If the faster train passes the slower train in 36 seconds,what is the length of each train? MCQ
- In a river flowing at 2 km/hr, a boat travels 32 km upstream and then returns downstream to the starting point. If its speed in still water is 6 km/hr, find the total journey time. MCQ
- A boatman can row 96 km downstream in 8 hour. If the speed of the current is 4 km/hr, then find the time required to cover 8 km upstream? MCQ
- A boatman can row 3 km against the stream in 20 minutes and return in 18 minutes. Find the rate of current? MCQ
- A man can row 7.5 kmph in still water and he finds that it takes him twice as long to row up than to row down the river. Find the rate of stream - MCQ
- A train overtakes two persons walking along a railway track. The first person walks at 4.5 km/hr and the other walks at 5.4 km/hr. The train needs 8.4 and 8.5 seconds respectively to overtake them. What is the speed of the train if both the persons are walking in the same direction as the train? MCQ
- If A and B together can complete a work in 18 days, A and C together in 12 days, and B and C together in 9 days, then B alone can do the work in- MCQ
- A and B together can complete a work in 3 days. They started together but after 2 days, B left the work. If the work is completed after two more days, B alone could do the work in- MCQ