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The length and breadth of a rectangular field are in the ratio of 5 : 2. If the perimeter of the field is 140 metres, then what is the breadth (in metres)?
  • a)
    20
  • b)
    25
  • c)
    30
  • d)
    35
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The length and breadth of a rectangular field are in the ratio of 5 :...
Let Length and Breadth of rectangle are 5x and 2x respectively.
Perimeter = 2(Length + Breadth)
140 = 2(5x+2x)
70 = 7x
So, x = 10 m
Therefore, Breadth of rectangle = 2×10=20 metre
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The length and breadth of a rectangular field are in the ratio of 5 : 2. If the perimeter of the field is 140 metres, then what is the breadth (in metres)?a)20b)25c)30d)35Correct answer is option 'A'. Can you explain this answer?
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