Mita has two brothers - one of the brothers is 4 years younger than her and the other brothers is 5 years older than this brother. If the average age of the siblings is 5, what is the age of Mita ?

The production cost of one unit of an item is Tk. 10. The item can be sold for a price of Tk. 16. The company...

The angels of a triangle are in the ratio 2:3:4. What is the value of the largest angle in the triangle ?

What is the amount of interest on Tk. 500 invested for nine months at the rate of 12.5% per annum ?

The height of a box is 10cm, its upper and lower lids are square in shape. If the total surface area of the bo...

The price of a mobile set Tk. 4200, which includes 20% profit mark up. What is the cost of the mobile set ?

Mr. Bakhtiar works in the procurement department of a library. Under a new purchase policy, he increased the t...