Question

Q. Find the cost of white washing the 4 walls of a room of dimensions 6mx5mx4m.If the rate of white washing is Rs5/m?
plz solve it
class 9th
Maths
TIA
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Answer 1

Answer:

i am assuming it is 5/m^3

area of 1 wall= 6*5*4=120m^3

for 4 walls= 120*4=480

for 5m^3 it is 5 rupees

for 480=480/5=96rupees

Step-by-step explanation:

Answer 2

Answer:

440

Step-by-step explanation:

length = l = 6m

breadth = b = 5m

height = h = 4m

area of four walls of the room= 2(l+b)h

= 2(6 + 5) * 4

= 2 * 11 * 4

= 88 m^2

cost of white washing per 1 square m =Rs 5

cost of white washing 88 m^2 = 88 * 5

= 440 rs.

Hope my answer will help you!