Two equal glasses are respectively one-third and one-fourth full of milk. they are then filled up with water and the contents are mixed in a tumbler. Ratio of milk and water in tumbler is :

The ratio between two numbers is 3:4 and their least common multiple is 180. What is the first number?

The distance between two stations, Dhaka and Chittagong is 450 km. A train starts at 5 pm from Dhaka and moves...

The simple interest on a sum of money will be Tk. 600 after 10 years. If the principal is trebled after 5 year...

Which one of the following is the next number in the series : 7, 7, 14, 42, 168-----?

12 year old Manick is three times as old as his brother Rahul. How old will Manick be when he is twice as old...

Lubana has purchased a square sheet of plywood of 289 square feet area. To cover a wall she must cut of two fe...