গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৯৪১–১৮৯৬০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days, the time taken by 15 men and 20 boys in doing the same type of work will be - MCQ
- Twelve children take sixteen days to complete a work which can be completed by eight adults in twelve days. Sixteen adults started working and after three days ten adults left and four children joined them. How many days will they now take to complete the remaining work? MCQ
- If (x + y) : (x - y) = 4 : 1, then (x2 + y2) : (x2 - y2) is equal to - MCQ
- If x/2 = y/3 = z/4 = (2x - 3y + 5z)/k, then the value of k is - MCQ
- If the income of A is 10% more than that of B and the income of B is 20% less than that of C, then the incomes of A, B and C respectively are in the ratio - MCQ
- If A : B = 4 : 5, B: C = 7 : 9 and C : D = 3 : 4, and if A’s share is Tk. 1680, the share of D is - MCQ
- Between two consecutive years my incomes are in the ratio of 2 : 3 and expenses in the ratio 5 : 9. If my income in the second year is Tk. 45000 and my expenses in the first year is Tk. 25000 my total savings for the two years is - MCQ
- The cost of a table and a chair are in the ratio of 5 : 7. If the cost of chair and table is increased by 20% and 10% respectively, then what will be the new ratio? MCQ
- How many liters of water should be added to a 30-liter mixture of milk and water containing milk and water in the ratio of 7 : 3 such that the resultant mixture has 40% water in it? MCQ
- A student took five papers in an examination, where full marks were the same on each paper. Her marks in these papers were in the proportion of 6 : 7 : 8 : 9 : 10. In all these papers together, the candidate obtained 60% of the total marks. Then the number of papers in which she got more than 50% marks is - MCQ
- 15 men, 18 women and 12 boys working together earned Tk. 2070. If the daily wages of a man, a woman and a boy are in the ratio of 4 : 3 : 2, the daily wage (in Tk) of 1 man, 2 women and 3 boys are - MCQ
- Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should Gold and Copper be mixed to get an alloy 15 times as heavy as water? MCQ
- Find the third proportional to 25 and 30 MCQ
- If a2 + b2 + c2 - ab - bc - ca = 0 then a : b : c is - MCQ
- Two alloys contain zinc and copper in the ratio of 2 : 1 and 4 : 1.In what ratio the two alloys should be added together to get a new alloy having zinc and copper in the ratio of 3 : 1? MCQ
- A, B and C enter into a partnership with the capital in the ratio 7/2 : 4/3 : 6/5. After 4 months A increases his share of capital by 50%. If at the end of the year the total profit earned is Tk. 2430, find the share of each in the profit. MCQ
- P, Q and R invested Tk. 45000, Tk. 70000 and Tk. 90000 respectively to start a business. At the end of 2 years, they earned a profit of Tk. 164000. What will be Q’s share in the profit? MCQ
- Sima started a software business by investing Tk. 50,000. After six months, Rajon joined her with a capital of Tk. 80000. After 3 years, they earned a profit of Tk. Tk. 24500. What was Sima’s share in the profit? MCQ
- A and B started a business in partnership investing Tk. 20000 and Tk. 15000 respectively. After six months, C joined them with Tk. 20000. What will be B’s share in the total profit of Tk. 25000 earned at the end of 2 years from the starting of the business? MCQ
- X and Y started a business in the ratio 2 : 3. After 1 year X left the business but Y continues. After 2 years he had the profit of Tk. 26000. What is the profit of Y? MCQ