Math, asked by safalghimire, 9 months ago

A rectangular field is 16 meter long and 10 meter wide. There is a path of uniform width all around it having area of 120 meter square. Find the width of the path.

Answers

Answered by Anonymous
1

Answer:

hey mate,

here is youranswer

Area of the outer rectangle

= (16 + 2x) (10 + 2x)

= 160 + 32x + 20x + 4x2

= 160 + 52x + 4x2

Area of the inner rectangle

= 16m X 10m

= 160m2

Area of the path

= 160 + 52x + 4x2 - 160 = 120

or, 4x2 + 52x - 120 = 0

or, x2 + 13x - 30 = 0

or, (x + 15) (x - 2) = 0

or, x = -15, 2

As width can not be negative  x = 2 m

i. e. width of the path = 2 m

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