Question

The internal measures of a cuboidal room are 12m x 8m x 4m. Find the total cost

Answer 1

Step-by-step explanation:

Hence the total cost of white washing four walls of the room = Rs. (160 × 5) = Rs. 800.

Answer 2

Solution

The dimensions of cuboidal room is

$12 \times 8 \times 4$

The lateral surface area is

$2h(l + b)$

$2(4)(12 + 8)$

$8 \times 20 = 160 {m}^{2}$

The total Cost is 5m²

$total \: cost \: is \: 5 \times 160$

$= 800$

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