73) Four friends Mani, Sunny, Honey and Funny start from four towns Mindain, Sindian, Hindian and Findian respectively. The four towns are at the four corners of an imaginary rectangle. They meet at a point which falls inside this imaginary rectangle. At that point three of them (Mani, Sunny and Honey has traveled distance of 40 m, 50 m and 60 m respectively). The maximum distance that Funny could have traveled is near about:
75) A square tin sheet of side 24 inches is converted into a box with open top in the following steps: The sheet is placed horizontally. Then, equal sized squares, each of side x inches, are cut from the four corners of the sheet. Finally, the four resulting sides are bent vertically upwards in the shape of box. If x is an integer, then what value of x maximize the volume of the box?