A room has a surface area of 340 m2. If its length and breadth are 8 m and 5 m respectively, find its height. What is the cost of painting the four walls of the room, if the painting cost is 200/m??
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0
Answer:
The dimensions of room is 12×8×4
The Lateral surface area is
2h(l+b)
2(4)(12+8)
8×20=160m
2
Cost of white wash is 5m
2
Total cost is 5×160=800Rs,
Step-by-step explanation:
Answered by
0
Answer:
Area of four walls of a room =2(l+b)h=
1.35
340.20
=252m
2
Also, l×b=
0.85
91.8
=108m
2
⇒b=
12
108
m=9m
⇒2(12+9)×h=252
⇒h=
42
252
=6m
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