The area of a rectangular field is 460 square metres If the length is 15 per cent more than the brea...........

Quantitative Aptitude ( CCS) Mensuration 2D

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

15 metres

26 metres

34.5 metres

None of these

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Explanation:

Let the breadth of the rectangular field be 'x' m.
Then, length of the field will be
x + x × 15/100 = 23x/20
Now, x × 23x/20 = 460
or, 23x² = 460 × 20
or, x² = 20 × 20
or, x = 20 m