গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৭৫০১–১৭৫২০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The speed of a boat in still water in 17 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is: MCQ
- Running at 5/4 of his usual speed, an athlete improves his timing by 10 minutes. The time he usually takes to run the same distance is: MCQ
- A man can row at 15 kmph in still water. If the velocity of current is 3 kmph and it takes him 1 hour to row to a place and come back, how far is the place? MCQ
- If A travels to his school from his house at the speed of 3 km/h, then he reaches the school 7 minutes late. If he travels at the speed of 4 km/h, he reaches the school 8 minutes earlier than school time. The distance of his school from his house is: MCQ
- The speed of a boat when travelling downstream is 42 km/hr, whereas when travelling upstream it is 38 km/hr, what is the speed of the stream? MCQ
- A train passes two bridges of lengths 700 m and 300 m in 100 seconds and 60 seconds respectively. The length of the train is MCQ
- A man can row 5 km/h in still water.If the speed of the current is 1 km/hr, it takes 3 h more in upstream than in the downstream for the same distance. The distance is- MCQ
- In a 120m race, Kamal defeats Jamal by 6 seconds. If the speed of Kamal is 18 kmph, then the speed of Jamal is: MCQ
- A man can row 9 km/hr in still water and he finds that it takes him twice as long to row up as to row down the river. Find the rate of the stream MCQ
- A cyclist moving on a circular track of radius 105 meters completes one revolution in 3 minutes. What is the average speed of cyclist (approx.)? MCQ
- Two trains of equal lengths are running on parallel lines in the same direction at the rate of 56 km/hr and 46 km/hr. The faster train passes the slower train in 36 seconds. What is the length of the trains ? MCQ
- An aeroplane covers a certain distance at a speed of 260 kmph in 5 hours. To cover the same distance in 5/3 hours, it must travel at a speed of: MCQ
- Thrice the speed of a boat downstream is equal to four times the speed upstream. The ratio of its speed in still water to its speed in current is- MCQ
- A train can travel 50% faster than a car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way, however, the train lost about 12.5 minutes while stopping at the stations. The speed of the car is: MCQ
- A 280 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train? MCQ
- A man on tour travels first 180 km at 96 km/hr and the next 180 km at 80 km/hr. The average speed for the first 360 km of the tour is: MCQ
- A train 165 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going? MCQ
- An individual is cycling at a speed of 37.5 km per hour. He catches his predecessor who had started earlier in two hours. What is the speed of his predecessor who had started 3 hours earlier? MCQ
- A 300 metre long train crosses a platform in 39 seconds while it crosses a signal pole in 18 seconds. What is the length of the platform? MCQ
- Two ladies simultaneously leave cities A and B connected by a straight road and travel towards each other. The first lady travels 2 km/hr faster than the second lady and reaches B one hour before the second lady reaches A. The two cities A and B are 24 km apart. The speed of second lady? MCQ