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the size of a rectangular field are in ratio 3 is to 4 and its area is 700sq m the cost of fencing it at 25 paise per metre is |
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Answer» The sides of a RECTANGULAR field are in the ratio 3 is to 4 if the area of the field is 7500 square metre find the cost of FENCING the field @ 25 paise per metre Answer: Step-by-step explanation: The sides of a rectangular field are in the ratio 3 is to 4 if the area of the field is 7500 square metre From the given Let us CONSIDER ratio as 3x:4x which is the length and breadth. Area of rectangle(L*B)=7500 m^2 3x*4x=7500 ==> 12x^2=7500 x^2=7500/12 x^2=625 x=25 Length=4x=100 , Breadth=3x=75 find the cost of fencing the field @ 25 paise per metre circumference of rectangle= 2(L+B)=350m fencing cost= 25p/m Therefore 350*25/100=Rs.87.50thanku |
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