The area of a rectangular field is 460 square metres If the length is 15 more than the breadth what ...........

Quantitative Aptitude ( CCS) Mensuration 2D

The area of a rectangular field is 460 square metres. If the length is 15% more than the breadth, what is breadth of the rectangular field?

15 m

26 m

34.5

None of these

Area of Rectangle = 460 m²

let length = l and breadth = b.

So length = 460/b. & breath = b.

Length is 15? more than breadth.

460/ b = b + 15/100× b

460/b = b+ 3b/20

23b/20 = 460/b

23b²= 460 × 20

b² = 46/23 × 200

b² = 400 = 20.

Hence breadth of a rectangle is 20m.

Hence, option 4 is the correct answer.

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