Aptitude - Area - Discussion

Discussion Forum : Area - General Questions (Q.No. 14)
14.
A rectangular field is 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?
34
40
68
88
Answer: Option
Explanation:

We have: l = 20 ft and lb = 680 sq. ft.

So, b = 34 ft.

Length of fencing = (l + 2b) = (20 + 68) ft = 88 ft.

Discussion:
18 comments Page 2 of 2.

Harika said:   5 years ago
Why we consider 20ft as length not as breadth? Please explain.
(1)

Katherin said:   5 years ago
Confused about l+2b. Please explain in detail.
(1)

Sreedevi said:   1 decade ago
How this (l+2b) comes. Can anyone help me?
(1)

Ishita said:   1 decade ago
Why is breadth more than length?

Vamshi said:   9 years ago
Well explained, thanks @Amreen.

Milap said:   1 decade ago
What is meaning of fencing ?

Ram said:   1 decade ago
Here b=34 how it was come?

Satti said:   9 years ago
How come l + 2b?


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