গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৭৮৮১–১৭৯০০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done ? MCQ
- Two dice are thrown simultaneously and the sum of the numbers appearing on them is noted. What is the probability that the sum is 7? MCQ
- A can do 60% of a work in 18 days, while B can do 40% of the same work in 10 days. Both work together for 10 days only. C completed the remaining work in 4 days. In how many days will C complete the same work? MCQ
- A, B and C completed a work costing Tk. 1800. A worked for 6 days, B for 4 days and C for 9 days. If their daily wages are in the ratio of 5 : 6 : 4, how much amount will be received by C? MCQ
- Fourteen persons can do a work in 18 days. After 5 days of work, 6 workers left the work, and joined back on the last day of the work. In how many days the work got completed? MCQ
- A can type 10 pages in 5 minutes. B can type 5 pages in 10 minutes. Working together, how many pages can they type in 30 minutes? MCQ
- Mina is 25% more efficient than Rina. Rina alone can build a craft in 20 days. Find the number of days taken by Mina to finish the same piece of work? MCQ
- 8 men or 12 women can do a piece of work in 24 days. In how many days can the work be done by 8 men and 12 women? MCQ
- 30 men are engaged to a work by a contractor for 6 days. They work for 4 days but due to some reasons only 50% of the work will be completed. How many more men should be engaged to work to complete the work in a given period of time. MCQ
- The efficiency of A, B and C is in the ratio 4 : 5 : 6. Together they can complete a piece of work in 32 days. In how many days will B alone complete the work? MCQ
- A group of men can do a job in 25 days. But 10 men did not turn up for the job and the remaining men did the job in 30 days. The original number of men in group was MCQ
- If 6 spiders make 6 webs in 6 days, then one spider will make one web in how many days? MCQ
- If A can do 1/4 of a work in 3 days and B can do 1/6 of the same work in 4 days, how much will A get if both work together and are paid Tk. 210 in all? MCQ
- A can do a piece of work in certain number of days. While B takes three days more than A to complete the same work. Working together, A and B can complete the work in two days. How many days does B take to complete the work? MCQ
- X can do a piece of work in 20 days and Y can do the 1/7th of the same work in 5 days. In how many days together can they complete the 11/20th of the total work? MCQ
- Painter P can paint a house in 16 days, and painter Q can do the same work in 20 days. With the help of painter R, they paint the house in 8 days only. Then, Painter R alone can do this task in - MCQ
- A and B undertook to do a piece of work for Tk. 4,500. A alone could do it in 8 days and B alone in 12 days. With the assistance of C they finished the work in 4 days. Then C’s share of money is - MCQ
- A does double the work of B in the same time. If they work together, they can dig a canal in 16 days. How many days would B take if he had to dig the same canal working alone? MCQ
- A can do a piece of work in 42 days and B is thrice as efficient as A. If B joins A on 22nd day then in how many days will the work be completed? MCQ
- A and B undertake to do a piece of work for Tk. 18,750. A can do it in 20 days and B can do it in 30 days. With the help of C, they finished it in 8 days. How much C should be paid for his work in proportion? MCQ