গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৬২৬১–১৬২৮০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- In a hockey championship, there are 153 matches played. Every two team played one match with each other. The number of teams participating in the championship is: MCQ
- What is the probability of getting 53 Mondays in a leap year? MCQ
- How many diagonals can be drawn in a pentagon? MCQ
- Two brother X and Y appeared for an exam. The probability of selection of X is 1/7 and that of B is 2/9. Find the probability that both of them are selected. MCQ
- X can complete a task in 12 days and Y in 18 days. If they work together for 3 days, what fraction of work is left? MCQ
- A, B and C can do a piece of work in 24 days, 30 days and 40 days respectively. They began the work together but C left 4 days before the completion of the work. In how many days was the work completed? MCQ
- P can build a wall in 24 days and Q can do it in 20 days. With help of R, they completed the work in 6 days. Find in how many days R alone can do the work. MCQ
- Sarah finishes 60% of a painting in 12 days. She then asks David to help and together they complete the remaining work in 4 days. How many days would David take to complete the whole painting alone? MCQ
- If Machine X can produce 1,000 bolts in 4 hours and Machine Y can produce 1,000 bolts in 5 hours, in how many hours can Machines X and Y, working together at these constant rates, produce 1,000 bolts? MCQ
- 5 machines, working 6 hours a day, can produce 300 units in 3 days. How many hours a day must 10 machines work to produce 300 units in 1 day? MCQ
- If the cost of p metres of wire is Tk. d, then what is the cost of q metres of wire at the same rate (in Tk)? MCQ
- A can do a piece of work in 10 days; B in 15 days. They work for 5 days. The rest of the work was finished by C in 2 days. If they get Tk. 3000 for the whole work, the daily wages of B and C together is: MCQ
- A fort has enough food for 180 soldiers for 60 days. After 20 days, 60 soldiers leave. For how many more days will the remaining food last MCQ
- Rakib and Kabila are working on an assignment. Rakib takes 6 hours to type 32 pages on a computer, while Kabila takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 220 pages? MCQ
- A man completes 5/8 of a job in 10 days. At this rate, how many more days will it takes him to finish the job? MCQ
- 8 men can complete a piece of work in 20 days. 8 women can complete the same work in 32 days. In how many days will 5 men and 8 women together complete the same work? MCQ
- A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 4 days. B can do the work alone in- MCQ
- In a dairy farm, 50 cows eat 50 bags of husk in 50 days. In how many days one cow will eat one bag of husk? MCQ
- A wheel that has 12 cogs is meshed with a larger wheel of 24 cogs. If the smaller wheel has made 44 revolutions, then find the number of revolutions made by the larger wheel. MCQ
- James hired some workers to build his house in 20 days. But on the day of starting of the construction, 12 men did not come. Rest of the people then built the entire house in 32 days. How many workers had he initially hired? MCQ