গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৮৪১–১৮৮৬০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The speed of a boat in still water is 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 24 minutes is - MCQ
- The current of a stream runs at the rate of 2 km per hr. A motorboat goes 10 km upstream and back again to the starting point in 55 min. Find the speed of the motorboat - MCQ
- The speed of a boat in still water is 8 kmph. If it can travel 1 km upstream in 1 hr, what time would it take to travel the same distance downstream? MCQ
- A train, 800meter long is running with a speed of 78 km/hr. It crosses a tunnel in 1 minute. What is the length of the tunnel (in meters)? MCQ
- Two trains each 500 meter 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
- Two trains are running at 40 km/hr and 20km/hr respectively in the same direction. If the faster train completely passes a man sitting in the slower training 5 seconds, the length of the faster train is - MCQ
- Two trains are running in opposite directions at the same speed. The length of each train is 120 meter. If they cross each other in 12 seconds, the speed of each train (in km/hr) is - MCQ
- A train 108 meter long is moving at a speed of 50 km/hr. It crosses a train 112 meter long coming from the opposite direction in 6 seconds. What is the speed of the second train? MCQ
- How many seconds will a 500-meter long train moving with a speed of 63 km/hr, take to cross a man walking with a speed of 3 km/hr in the direction of the train ? MCQ
- Two stations P and Q are 110 km apart on a straight track. One train starts from P at 7 a.m. and travels towards Q at 20 kmph. Another train starts from Q at 8 a.m. and travels towards P at a speed of 25kmph. At what time will they meet? MCQ
- A train, having a length of 110 meter is running at a speed of 60 kmph. In what time, it will pass a man who is running at 6 kmph in the direction opposite to that of the train - MCQ
- If a man's rate with the current is 15 km/hr and the rate of the current is 1(1/2) km/hr, then his rate against the current is - MCQ
- A boat goes 8 km upstream in 24 minutes. The speed of the stream is 4 km/hr. The speed of boat in still water is - MCQ
- The speed of a boat in still water is 25 kmph. If it can travel 10 km upstream in 1 hr, what time would it take to travel the same distance downstream? MCQ
- A train runs at the speed of 72 kmph and crosses a 250 meter long platform in 26 seconds. What is the length of the train? MCQ
- A train having a length of 270 meter is running at the speed of 120 kmph. It crosses another train running in the opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train? MCQ
- Two trains, each 100 meter long are moving in opposite directions. They cross each other in 8 seconds. If one is moving twice as fast the other, the speed of the faster train is - MCQ
- A boatman can row 96 km downstream in 8 hr. If the speed of the current is 4 km/hr, then find in what time will be able to cover 8 km upstream? MCQ
- The speed of a boat in still water is 10 km/hr. If it can travel 78 km downstream and 42 km upstream in the same time, the speed of the stream is MCQ
- A man can row at a speed of 12 km/hr in still water to a certain upstream point and back to the starting point in a river which flows at 3 km/hr. Find his average speed for the total journey. MCQ