Question

the perimeter of a cuboidal hall is 220m and it's height is 16m . find the cost of white washing the room at rate of rs 24 per m^2​

Answer 1

$\large{\underline{\rm{\red{\bf{Question:-}}}}}$

The perimeter of a cuboidal hall is 220 m and it's height is 16 m. find the cost of white washing the room at rate of Rs. 24 per m²

$\large{\underline{\rm{\red{\bf{Given:-}}}}}$

Perimeter of a cuboidal hall = 220 m

Height of the hall = 16 m

Rate of white washing per meter = Rs. 24

$\large{\underline{\rm{\red{\bf{To \: Find:-}}}}}$

The cost of white washing the room.

$\large{\underline{\rm{\red{\bf{Solution:-}}}}}$

Given that,

Perimeter of the cuboidal hall = 220 m

Height of the hall (h) = 16 m

Rate of white washing per meter = Rs. 24

Now,

Area of the room = Perimeter × Height

Area of the room = 220 × 16

Area of the room = 3520 m²

Given that, the cost of white washing per meter is Rs. 24

Now, finding the cost of white washing,

Cost of white washing = Area of the room × Cost per meter

Cost of white washing = 3520 × 24

Cost of white washing = Rs. 84480

Therefore, it costs Rs. 84480 for white washing the room.