Question

The cost of painting a rectangular wall at rs 30per m² is rs 1,800. Find the perimeter of the wall if it is known that the height of the wall is 4m

Answer 1

Answer:

Step-by-step explanation:

Total cost of Painting the Rectangular Wall        : Rs.1800

Cost per Sq meter to paint the wall                     : Rs.30/sq m

Therefore the area of the wall is                          : Total Cost/Cost per Sq m

                                                                               : 1800/30 = 60 sq m

Height of the Wall                                                  : 4 M

Length of the Wall                                                 : Area/Height = 60/4 = 15 M

Perimeter of the Wall                                             : 2( Height + Length)

                                                                                : 2 * ( 4+15) = 2* 19 =38 M