In a ground of 5000 sq. ft., only 3600 sq. ft. is allowed for construction. What percentage of the ground is allowed for construction?
A
72
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B
60
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C
42
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D
66
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Solution
The correct option is A72 Total ground area =5000 sq. ft.
Area allowed for construction =3600 sq. ft. ∴ Fraction of the ground allowed for construction =36005000
= 1825
Note : a% =a100
So, 1825=18×425×4
=72100
So, the percentage of ground allowed for construction =72%