A hall 36m long and 24m broad allowing 80m square for doors and windows The cost of papering the walls at Rs8.40 per m square is Rs 9408. Find the height of the hall!!!
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Step-by-step explanation:
length of hall= 36m
breadth = 24m
height= let it be x
area of 4 walls= 2× h ( l+b
2×height (36+24)
= 120 height m square
area left out for windows and doors = 80m square
area papered = 120- 80 m square
9408= ( 120 h - 80)× 8.40
1120= 120 h - 80
1200= 120 h
hence, height of the wall = 10m
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