4. A hall 10 m long, 6 m wide and 4 m high has three doors of size 1.5 m by 2 m and four
windows of size 1 m by 1 m. If a wall paper 1m wide that costs *7 per metre is used to cover
the remaining portion of the wall, find the expenditure made on the wall paper.
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Answered by
3
Answer:
Step-by-step explanation:
surface area of walls = 2(l+b)h
= 2(10+6)4
=8*16=128 m2
doors = 3*1.5*2 = 9m2
windows = 4*1*1=4m2
remaining area = 128-4+9=115m2
so cost = 7*115 = rs. 805
Answered by
3
Answer:
115 m² is area covered with wallpaper
805 rs is the cost of wallpaper
Step-by-step explanation:
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