Of the two square fields, the area of one is 1 hectare while the other one is broader by 1%. The difference in their areas is :
Options:
A . 100 m2
B . 101 m2
C . 200 m2
D . 201 m2
Answer: Option D Area = 1 hect. = 10000 sq. m Side = $$\sqrt {10000} $$ m = 100 m Side of the other square = 101 m Difference in their areas : = [(101)2 - (100)2] m2 = [(101 + 100) (101 - 100)] m2 = 201 m2
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