Question

the length, breadth and height of a room are 5m, 4m,and3m respectively find the cost of white washing the walls of the room and the ceiling at the rate of Rupesh 7.50 per m​

Answer 1

Step-by-step explanation:

LSA OF A CUBOID FORMULA IS 2h(l +b)

2×3(5+4)

6(9)

54m^2

area of ceiling = l ×b

5 ×4 = 20 m^2

add both =

54+ 20 = 64 m^2

cost of white washing = 64 x 7.50

= 480 ruppes

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Answer 2

Answer:

4×3×5=60m

60×7.5=450