Question

the length breath and height of a room are 5m 4m and 3m respectively find the cost of white washing the walls of the room and the ceiling at the rate of Rs.7.50 per sq.m​

Answer 1

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Answer 2

Answer:

l=5m

b=4m

h=3m

area of wall =2h(l+b)

=2*3(4+5)

=6*9

=54sq m

area of cieling =l*b

=5*4

=20sq m

total area =area of cieling +area of cieling

=54 + 20

=74sq m

cost of white wishing =

=50*74

=3700

rs=3700