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Doctors Medicines MCQs Q&A

  1. 1200
  2. 480
  3. 960
  4. 1000
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1 Answers

Option 3 : 960

Given:

Length of rectangle = 3/5 of radius of circle

Radius of circle = Side of square with area 6400 m2

Breadth of rectangle = 20 m

Formulas used:

Area of square = (Side)2

Area of rectangle = Length × Breadth

Calculation:

Area of square = 6400 m2

⇒ Side2 = 6400

⇒ Side = √6400 = 80 m

Radius of cirlce = 80 m

⇒ Length of rectangle = 3/5 × 80 = 48 m

Area of the rectangle = 48 × 20 m2

⇒ 960 m2

∴ The area (in m2) of the rectangle is 960

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