গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৭৫২১–১৭৫৪০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- Two trains, each 150 m long, moving in opposite directions, cross each other in 8 seconds. If one is moving twice as fast the other, then the speed of the faster train is: MCQ
- A certain distance is covered at a certain speed. If half the distance is covered in double the time, the ratio of the two speeds is- MCQ
- The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is: MCQ
- A motor boat takes 2 hours to travel a distance of 9 km downstream and it takes 6 hours to travel the same distance against the current. The speed of the boat in still water- MCQ
- A man can row three-quarters of a kilometer against the stream in 45/4 minutes and down the stream in 15/2 minutes. The speed (in km/hr) of the man in still water is: MCQ
- From two places, 60 km apart, M and N start towards each other at the same time and meet each other after 6 hour. If M traveled with 2/3 of his speed and N traveled with double of his speed, they would have met after 5 hours. The speed of M is- MCQ
- A train covers a distance between two stations A and B in 45 minutes. If the speed of the train is reduced by 5 km/hr, then it covers the distance in 48 minutes. The distance between the stations A and B is : MCQ
- A boys goes to school with a speed of 4 km/hr and returns to the village with a speed of 3 km/hr. If he takes 7 hours in all, the distance between the village and the school is: MCQ
- A and B two taps fill in a tank in 5 hours and 10 hours respectively. If both tapes are opened together, the tank will be full in: MCQ
- Three pipes A, B and C can fill a tank in 8 hours. After working together for 2 hours B is closed and then A and C can fill in the remaining part in 8 hours. The number of hours taken by B alone to fill the cistern, is: MCQ
- If a man covers 15.2 km in 4 hours, the distance covered by him in 5 hours is: MCQ
- A man walking at a speed of 3 km/hr. crosses a square field diagonally in 5 minutes. What is the area of the field (in m2) ? MCQ
- A speed of 65 m/sec is the same as: MCQ
- Robinson crosses a street 500 m long in 6 minutes. His speed in km, per hour is: MCQ
- A distance is covered in 3 hrs 30 minutes at 5 km/hr. How much time will be taken to cover it at 21 km/hr? MCQ
- Shafiq performs 6/15 of the total journey by rail 8/20 by train and the remaining 12 km on foot, his total journey 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 minutes only. The correct time for the train to complete the journey is MCQ
- A truck travels 150 km from A to B at 75 km/hr. and returns from B to A along the same route at 50 km/hr. The average speed, in kilometers per hour, for the round trip is: MCQ
- Three pipes A, B, and C would fill a tank in 10 hours, 15 hours, and 20 hours respectively. If all these pipes are opened simultaneously, how much time will be taken to fill the tank? MCQ
- Pipes A, B can fill a tank in 15 minutes and 20 minutes respectively. But pipe C can empty the full tank in 12 minutes. If all these pipes are opened simultaneously, how much time will be taken to fill the tank? MCQ