Question

The internal measure of a cuboidal room are 12m×8m×4m. find the total cost of white washing all four walls of a room. if the cost of white washing 5perm2. what will be the room is also white washed

please answer my question ​

Answer 1

Answer:

Hope it helps ya

Step-by-step explanation:

Dimensions = 12m * 8m * 4m

Lateral surface area = 2(l+b) h

= 2(12+8)4 = 8*20= 160 sq m

Cost rs. 5 per sq m

Total cost = 160* 5 = rs. 800

Area of ceiling = 12*8 = 96 sq m

So, cost = rs 5 * 96

= rs. 480

Total cost = 800+480

=rs.1280

Answer 2

Answer:

2(l+b)×h×5

2×(12+8)×4 ×5

=40×20

=800