the Length breadth and height of a room are 5m 4m and 3 respectively find the cost of whitewashing the walls of the room and the ceiling at the rate rupees 750 per metre square. anyone know's??
plz explain step by step
Answers
Answered by
1
Answer:
Step-by-step explanation:
Area of 4 walls of room = 2h(l+b)
= 2×3(5+4)
= 54 sq. m
Area of ceiling = l×b
= 5×4 = 20 sq. m
Area of whitewashing = 54+20=74sq.m
Cost of whitewashing = 750×74 = Rs. 55500
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Answered by
0
Answer:
Step-by-step explanation:
Area of 4 walls=4(l+b)×h
=4(9)3
=108m^3
Cost=108×750=81000
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