গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৬৮৪১–১৬৮৬০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- A alone can do a piece of work in 6 days and B alone in 8 days. A and B undertook to do it for 3200 Tk. With the help of C they completed the work in 3 days. How much is to be paid to C? MCQ
- A and B are the two alloys of copper and brass prepared by mixing metals in the proportion of 7 : 2 and 7 : 11 respectively. If equal quantities of two alloys are melted to form a third alloy called C, then the proportion of copper and brass in C will be MCQ
- If 0.75 : x :: 5 : 8, then x is equal to: MCQ
- The incomes of X and Y are in the ratio of 3 : 2 and their expenditures are in the ratio of 5 : 3. If each of them saves Tk. 1000, then, X’s income can be MCQ
- To produce an annual income of Tk. 900 from a 9% stock at 90, the amount of stock needed is - MCQ
- From a container, full of pure milk, 20% is replaced by water and this process is repeated two times. At the end of the second operation, the quantity of pure milk reduces to- MCQ
- Joni buys a Tk.40 shares in a company, which pays a 10% dividend. Joni buys the share at such a price that his profit is 16% on his investment. At what price did Joni buy the share? MCQ
- In a zoo, there are deer and ducks. If the heads are counted, there are 180, while the legs are 448. What will be the number of ducks in the zoo? MCQ
- The ratio of syrup and water in a mixture is 3 : 1, then the percentage of water in the mixture is- MCQ
- If 40% of a number is equal to two - third of another number, what is the ratio of first number to the second number? MCQ
- Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should these be mixed to get an alloy 10 times as heavy as water? MCQ
- If a : b = 2 : 3 and a : c = 4 : 7, then b : c =? MCQ
- A solution containing 10% sugar by weight is made sweeter by doubling the amount of sugar. The percent of sugar, by weight, in the new solution is- MCQ
- The cost of 9 pens and 5 pencils is equal to the cost of 7 pens and 8 pencils. Find the ratio between the cost of 1 pen and the cost of one pencil. MCQ
- If A : B = (1/2) : (1/3) and B : C = (1/2) : (1/3), then A : B : C =? MCQ
- Tea worth Tk. 126 per kg and Tk. 135 per kg are mixed with a third variety in the ratio 1 : 2 : 2. If the mixture is worth Tk. 153 per kg, the price of the third variety per kg will be: MCQ
- Helal and Tonmoy share some sweets in a ratio of 7 : 5. Helal has 12 more sweets than Tonmoy. How many sweets were there altogether? MCQ
- In a mixture, the ratio of milk and water is 6 : 5. When 22 litre mixture is replaced by water, the ratio become 9 : 13. Find the quantity of milk after replacement. MCQ
- A began a business with Tk 85,000. He was joined afterward by B with Tk. 42,500. If the profit at the end of the year is divided into the ratio of 3 : 1. Then, B was in the business for - MCQ
- The ratio of expenditure and savings is 3 : 2 . If the income increases by 15% and the savings increase by 6%, then by how much percent should his expenditure increases? MCQ