Question

Q) The length breadth and height of a room are 5m,4m and 3m respectively .find the cost of whitewashing the Walls of the room and the ceiling at the rate of ₹ 7.50 perm² ?​

Answer 1

Answer:

l=5m

b=4m

h=3m

area= 2(lb+bh+hl)

2(5*4+4*3+3*5)

2(20+12+15)

2(46)

98m cube

we know that we only whitewash the walls not tje flor

so, l*b

5*4=20

94-20=74m cube

if 1m=7.50

74m=74*7.50=555

Step-by-step explanation:

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