Question

A cubical box with lid has a length of 30 cm. Find the cost of painting the inside and outside of the box at Rs 2 m 2 .

Answer 1

Given,
     length of the cube = 30 cm=0.3 m
       total surface area of cube = 6l^2
                                             = 6 (0.3)^2
                                                 =0.54 m^2
          total cost for painting= (0.54)(2)
                                           =1.08 Rs
   therefore, the cost of total painting is 1.08 Rs

Answer 2

the answer is 1.08 rupee hope it will help you