তিনটি সমান, সাদৃশ ও সমান্তরাল বল একটি ত্রিভূজের বাহুগুলোর মধ্যবিন্দুতে ক্রিয়ারত । এদের লব্ধি ত্রিভূজটির-
টেলিফোন ডায়ালে 0 থেকে 9 পর্যন্ত লেখা থাকে । যদি কক্সবাজার শহরের টেলিফোনগুলো 5 অংক বিশিষ্ট হয়, তবে ঐ শহরে কত টেলিফোন সংযোগ দেয়া যাবে ?
The rate of inflation was 1000% . Then what will be the cost of an item, which costs 6 taka now , 2 years from now?
The sum of four consecutive two -digit odd numbers , when divided by 10, becomes a perfect square. Which of the following can possibly be one of these four numbers?
Fresh grapes contain 90% water by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 20 kg of fresh grapes?
The average marks of a student in 10 parers are 80. If the highest and the lowest scores are not considered, the average is 81 . If his highest score is 92. find the lowest.
In △ABC, , points P,Q and R are the mid points of sides AB, BC and CA respectively . If area of △ABC, is 20 square unit, find the area of ∆PQR .
In a class, the number of boys is more than the number of girls by 12 % of the total students . The ratio of boys to girls is :
which of the following information is alone sufficient to find out the value 4x2 +12xy + 9y2 ?
Due to booming business, a company increased its staff salary by 25% , By what percent must it now decrease the salary to return to the original amount?
If I have a number and add 6 , I get same result as if I double the number and subtract 21. Find the number.
If a = 9x -2, b=3x +5 and 2a =b , then the value of x =?
If n and p are both odd numbers,which of the following numbers must be an even number?
starting from position X on the plain play ground of khulna University, one particular student walks 10 yerds due south and by that reached at position Y . Now , detect how far apart, in yards are position X and Y?
The size of the philips LCD television screen is given as the length of the screen's diagonal , Assume that the screens of the television were flat. Find out how many square inches greater would be the screen of square inches greater would be the screen of a square 21 -inch television set than that of a square 19-inch television set.
A bird under controlled diet is fed daily 300 grams of a mixture of two foods: food A and food B. Food A contains 10% protein and food B contains 15% proten. If the bird's diet provides exactly 38 grams of protein daily, how many grams of food A are there in the mixture?
Khulna University has astudent -to teacher ratio of 11 to 1. The average annual salary of the teachers is Tk. 26,000. If the university pays a total of 33,80,000 in annual salaries to its teachers, how many students the university have?
A glucose solution contains 15 grams of glucose per 100 cubic centimeters of solution . If 45 cubic centimeters of solution were poured into an empty container how many grams of glucose would be in the container?
If x and y are the two digits of the number 653XY in such that this number is divisible by 80 , then what is the value of x + y?
A tap can fill the tank in 15 minutes and another can empty it in 5 minutes. If the tank is already half -full and both the taps are opened together , how many minutes will the tank take to be emptied?