গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৭০১–১৭২০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- Rahim can do a piece of work in 20 days. Karim is 25% more efficient than Rahim. The number of days taken by Karim to do the same piece of work is: MCQ
- A is thrice as good a workman as B and so takes 40 days less than B for doing a job. The time in which they can do the job together is- MCQ
- A can do a piece of work in 8 days working 12 hours per day. If B is two-thirds as efficient as A, then in how many days B alone do the same piece of work, working 4 hours per day? MCQ
- Rajib can do a work in 5 days while Farez can do the same work in 3 days. Both of them finish the work together and get Tk. 240. What is Rajib's share? MCQ
- 30 women can do a work in 15 days. 18 men can complete the same work in 10 days. What is the ratio between the capacity of a man and a woman? MCQ
- A building contractor undertook to finish a certain work in 162 days and employed 150 men. After 72 days, he found that he already done 2/3 of the work. How many men can be discharged now, so that the work finish in time? MCQ
- P works twice as fast as Q. If Q can complete a work in 12 days independently, the number of days in which P and Q can together finish the work is? MCQ
- Two pipes A and B can fill a tank in 10 and 15 minutes respectively. If both the pipes are used together, how long will it take to fill the tank? MCQ
- Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is: MCQ
- One pipe can fill a tank three times as fast as another pipe. If together the two pipes can fill the tank in 36 minutes, then the slower pipe alone will be able to fill the tank in: MCQ
- Two pipes A and B can separately fill a cistern in 60 minutes and 75 minutes respectively. There is a third pipe in the bottom of the cistern to empty it. If all the three pipes are simultaneously opened the cistern is full in 50 minutes. In how much time, the third pipe alone can empty the cistern? MCQ
- A pump can fill a tank with water in 2 hours. Because of a leak, it took 7/3 hours to to fill the tank. The leak can drain all the water of the tank in? MCQ
- A pipe can fill a cistern in 16 hours. After half the tank is filled, three more similar taps are opened. What is the total time to fill the cistern completely? MCQ
- A leak in the bottom of a tank can empty the whole tank in 6 hours. An inlet pipe fills water are the rate of 5 liters a minute. When the tank is full, the inlet is opened and due to the leak, the tank is empty in 10 hours. How many liters does the tank hold? MCQ
- Two pipes P and Q can fill a cistern in 36 and 48 minutes respectively. Both pipes are opened together, after how many minutes should Q be turned off, so that the cistern be fill in 24 minutes? MCQ
- A cistern can be filled by a tap in 6 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously, then after how much time the cistern will get filled? MCQ
- A outlet pipe can empty a cistern in 8 hours. In what time will it empty 1/2 part of the cistern? MCQ
- Two pipes A and B can fill a pool in 3 hours and 6 hours respectively. If both pipes work together, how long it will take to fill the pool? MCQ
- A pipe can fill up an empty tank in 12 minutes, Another pipe flows out 8 liters of water per minute. If the two pipes are opened together and the empty tank is filled up in 84 minute. How much water does the tank contain? MCQ
- ত্রিভুজের বাহুগুলোর অনুপাত 1 : 1 : √2 হলে, ত্রিভুজের বাহুগুলোর বিপরীত কোণগুলোর অনুপাত কত? MCQ