the length of a rectangular field is 30 m more than its breadth. If the perimeter is 640m . the length of the field
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Let the breadth of the rectangular field be x
Then, length of the field = x + 30
Perimeter = 640
∴ length and breadth of rectangular field
2( l + b ) = 640
2( x + 30 + x ) = 640
2x + 30 = 640/2
2x = 320- 30
x = 290/2 = 145
∴ Length of field = x + 30 = 145 + 30 = 175.
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please tell me my ans is correct or not please
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