গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৬৪৮১–১৬৫০০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- The ratio of red balls, to yellow balls, to green balls, to blue balls in a basket is 2 : 3 : 4 : 5. What is the probability that a ball chosen at random from the basket is a red ball? MCQ
- In how many different ways can the letters of the word "ACTIVE" be arranged so that the vowels occupy only odd positions? MCQ
- Find the number of triangles which can be formed by joining the angular points of a polygon of 7 sides as vertices. MCQ
- Five persons, A, M, J, R, and P, sit randomly in five chairs in a row. What is the probability that R and M sit next to each other? MCQ
- In how many different ways can the letters of the word "DESIGN" be arranged so that the vowels are at the two ends? MCQ
- If 15 men can reap the crops of a field in 28 days, in how many days will 5 men reap it? MCQ
- Worker A completes a task in 8 days, and worker B completes the same task in 10 days. If both A and B work together, in how many days they will complete the task? MCQ
- A fort had arrangements for 150 boys for 45 days. After 10 days, 25 boys left the fort. Then after how much time the food will be consumed completely if the consumption of food remains the same for the remaining boys? MCQ
- Vikas and Mohan working together can complete a work in 6 days. If Vikas alone completes the same work in 10 days, in how many days Mohan alone can complete the same work? MCQ
- If 30 men can complete a piece of work in 27 days, in what time 18 men can do another piece of work 3 times as greater? MCQ
- A can do a work in 10 days and B can do the same work in 15 days. If they start working together but stop working after four days, find the fraction of the work that is left. MCQ
- If 9 engines consume 24 metric tons of coal, when each is working 8 hours per day, how much coal should be available for 8 engines, each running 13 hours per day, it is given that 3 engines of the former type consume as much as 4 engines of the latter type. MCQ
- Peter is twice as good as workman as Tom. When they work together they can finish a task in 16 days. If Tom works alone, in how many days he will complete the task? MCQ
- A contract is to be finished in 46 days and 117 men involved in it, each working 8 hours per day. After 33 days, 4/7 of the work is finished, how many additional men may be employed so that it may be completed in time, each man now working 9 hours a day? MCQ
- A can do a job in 12 days and B can do the same job in 10 days. With the help of C they can do the same job in 4 days. In how many days C alone can do this job? MCQ
- 24 women or 15 men or 36 boys can finish a piece of work in 12 days, working 8 hours per day, how many men must be associated with 12 women and 6 boys to finish another piece of work 9/4 times as greater in 30 days working 6 hours a day? MCQ
- The price of 357 mangoes is Tk. 1517.25. Find the approximate price of 49 dozens of such mangoes? MCQ
- If 5 men can colour 50-meter long cloth in 5 days, in many days 4 men can color a 40-meter long cloth? MCQ
- If 2 kg of almonds cost as much as 8 kg of walnuts, and the cost of 5 kg of almonds and 16 kg of walnuts is Tk. 1080, what is the cost of almonds per kg? MCQ
- If 4 men can finish 4 times of a work in 4 days, in how many days 6 men can finish the 6 times of same work? MCQ