গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৮৬১–১৮৮৮০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- A boatman can row 3 km against the stream in 20 minutes and return in 18 minutes. Find the rate of current: MCQ
- A boat takes 38 hours for travelling downstream from point A to point B and coming back to point C midway between A and B. If the velocity of the stream is 4 kmph and the speed of the boat in still water is 14 kmph, what is the distance between A and B? MCQ
- A car starts at A and reaches a destination in 8 hours. If it travels first and second half at the speed of 80 km/hr and 100 km/hr respectively then the distance between A and destination is - MCQ
- A man runs at a speed of 7 km per hour and he increases his speed every hour by 1 km per hour. In how many hours will he cover 19.5 km? MCQ
- After travelling 50km, a train is meeting with an accident and travels at (3/4)th of the usual Speed and reaches 45 min late. Had the accident happened 10km further on it would have reached 35 min late. Find the usual Speed? MCQ
- A man travels from his home to the office at 4km/hr and reaches his office 20 min late. If the Speed had been 6 km/hr he would have reached 10 min early. Find the distance from his home to office? MCQ
- Pipe 1 and pipe 2 can fill a cistern in 2 and 6 hours respectively. Pipe 3 can empty the cistern in 9 hrs. If all the pipes are opened together find the time taken to fill the cistern. MCQ
- Two taps can fill a cistern in 30 and 40 minutes respectively. If both the taps are opened simultaneously then the approximate time taken to fill the cistern is - MCQ
- Three taps A,B and C are used to fill a cistern. Tap A alone can fill the cistern in 9 minutes. Tap B can fill in 6 minutes and Tap C can fill in 3 minutes. How many minutes will it take to fill this cistern if all the three taps are used simultaneously? MCQ
- Pipe X can fill a cistern thrice as fast as another pipe Y and the pipe Y is thrice as fast as pipe Z. If X, Y and Z together fill the cistern in 10 minutes then the time taken by X to fill the cistern is - MCQ
- A monkey climbing up a pole ascends 6 meters and slips 3 meters in alternative minutes. If the pole is 60 meters high, how long will it take the monkey to reach the top? MCQ
- A train leaves Dhaka at 4.10 P.M. and reaches Mymensingh at 7.25 PM. The average speed of the train is 40 km/hr. What is the distance from Dhaka to Mymensingh? MCQ
- The speed of A and B are in the ratio 3 : 4. A takes 20 minutes more than B to reach a destination. In what time does A reach the destination? MCQ
- A man takes 6 hours 30 min in going by cycle and coming back by scooter. He would have lost 2 hours 10 min by going on cycle both ways. How long would it take him to go by scooter both ways? MCQ
- Pipe X takes 6 hours to fill a cistern and another pipe Y takes 7 and half hours to fill the same cistern. If the pipes X and Y are switched together at the same time and X is closed after 1 and half hours then the extra time taken by Y to fill the cistern is - MCQ
- Pipe A can fill a tank in 60 minutes and Pipe B can empty the tank in 120 minutes.How long will they take to fill the tank if both pipes are opened simultaneously? MCQ
- A is faster than B. A and B each walk 24 km. The sum of their speeds is 7 km/hr. And the sum of times taken by them is 14 hours. Then A’s speed is equal to - MCQ
- A car covers the first 39 kms of its journey in 45 minutes and covers the remaining 25 km in 35 minutes. What is the average speed of the car? MCQ
- A plane flying north at 500 mph passes over a city at 12 noon. A plane flying east at the same altitude passes over the same city at 12 : 30 P.M. The plane is flying east to 400 mph. To the nearest hundred miles, how far apart are the two planes at 2 P.M.? MCQ
- An aeroplane flies from place A to place B at the speed of 500 km/hr. On the return journey, its speed is 700 km/hr. The average speed of the aeroplane for the entire journey is - MCQ