The cost of carpeting a room of 18 m long with a carpet of 75 cm wide at Rs. 4.50 per meter is Rs. 4.50 per meter is Rs. 810. The breadth of the room is 

The radii of two cylinders are in the ratio 3:5 and their heights are in the ratio 2:3. Find the ratio of their curved surface areas

Find the total volume of 14 cubes whose edges are 12 cm, 13 cm,.....,25 cm respectively

If ∝ and β are the roots of the equation 3x² - 6x+4 = 0, find the value of ∝/β+β/∝

If 6% savings of the salary of a person is Rs. 3000. Find his actual salary

B is twice as old as A, but half the age of F. C is half the age of A but twice the age of D. Which two persons form the pair of youngest and oldest