the cost of levelling a rectangular field is rupees 50 per metre square is rupees 30000 if its length and breadth are in ratio of 3 : 2 then find its perimeter
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Answer:
100 m
Step-by-step explanation:
Cost of leveling per m² = ₹50
Total cost of leveling = ₹30,000
Area of field = 30,000 ÷ 50 = 600 m²
Let the ratio be 3x : 2x.
Area of rectangle = l×b
=> 3x × 2x = 600
=> 6x² = 600
=> x² = 600/6
=> x² = 100
=> x = 10
Hence, the length and breadth are 30 m and 20 m respectively.
Perimeter = 2(l+b) = 2(30+20) m = 2(50) m = 100 m
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