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A rectangular field has to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required?
A. 95
B. 92
C. 88
D. 82
Answer : Option C
Explanation :
Given that area of the field = 680 sq. feet => lb = 680 sq. feet Length(l) = 20 feet => 20 × b = 680
B=680/20=34 feet
Required length of the fencing = l + 2b = 20 + (2 × 34) = 88 feet
It is Option C. - 88
opoction _c 88
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