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Question 65
A person wishes to make a 100 sq m rectangular garden. Since he has only 30 m barbed wire for fencing, he fences only three sides letting the house wall act as the fourth side The width of the garden is
Solution
Area of garden = 100 sq m
Let length = l and width = b
l x b = 100
Option A : b = 10 => l = 10 . It is a square and not a rectangle.
Option C : b = 50 , l= 2 . Since, he fences only three sides, either 2l +b should be 30 or l+2b should be 30. Neither of these values satisy the condition.
Option D: b alone cannot be 100
hence option B
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