If the interest of Tk. M at M% in 4 years is Tk. M, then M = ?
If the area of a triangle with base x is equal to the area of a square with side x, then the altitude of the triangle is-
Two trains of equal length are running on parallel lines in the same direction at 46km and 36km per hour. The faster train passes the slower train in 36 seconds. The length of each train is -