The length of a rectangular plot is 3 1 8 times that of its breadth If the area of the plot is 320 s...........

Quantitative Aptitude ( CCS) Mensuration 2D

The length of a rectangular plot is 3 1/8, times that of its breadth. If the area of the plot is 320 square metres, then what is its length?

80 m

100 m

120 m

140 m

Let the breadth be x metres. Then, length = 25x/8 metres
x × 25x/8 = 320
x2 = 2560/25
x = 160/5 = 32
Length = (25/8) × (32) = 100 m

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