Front wall of an auditorium has to be decorated for a function. How many decorative papers would be required to cover the wall completely, if the length and breadth of the wall are 30 metre and 20 metre respectively, while that of a paper are 1m and 50cm respectively.
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Answer:
12 decorative papers will be needed.
Step-by-step explanation:
length of wall = 30 m
breadth of wall = 20m
Area of wall = 30m * 20m = 600m^2 = 60000 cm^2
length of a paper= 100cm
breadth of a paper = 50cm
area of a paper = 100cm *50cm = 5000cm^2
Total papers required= area of wall ÷ area of a paper
60000 cm^2 ÷ 5000 cm^2
= 60/5
=12
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