A man has to walk 6 km to cover all the boundaries of a rectangular farm of area 2 sq.km. What is the difference between the two sides of the farm?
Question and options
A man has to walk 6 km to cover all the boundaries of a rectangular farm of area 2 sq.km. What is the difference between the two sides of the farm?
- 0 km
- 1 km
- 2 km
- 0.5 km
Answer and explanation
Correct answer: B - 1 km
Perimeter 2(l+b) = 6 so l+b = 3, and lb = 2; sides are 2 km and 1 km, difference 1 km.
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CUSAT CAT Five-Year LL.B.
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