if the cost of fencing a rectangular park with length 20 m is rs.1600 at the rate pf rs.25 per metre,find the breadth of the park.also find its area
Answers
Answered by
7
Parameter= 1600/25=64m
atq
2(20+B)=64
B=12f
so Breadth=12
Area=20*12 sqf
240 sqf
atq
2(20+B)=64
B=12f
so Breadth=12
Area=20*12 sqf
240 sqf
Answered by
10
The cost of fencing it at Rs. 25 per meter = Rs. 1600
Perimeter of the field = 1600/25 = 64 m
Length of field = 20 m
Perimeter of a rectangular field = 2(L+b)
64= 2(20+b)
64 = 40 +2b
2b = 64-40
2b =24
b = 24/2
b = 12 m
Area = L× B= 20 ×12 =240 sq. m
Perimeter of the field = 1600/25 = 64 m
Length of field = 20 m
Perimeter of a rectangular field = 2(L+b)
64= 2(20+b)
64 = 40 +2b
2b = 64-40
2b =24
b = 24/2
b = 12 m
Area = L× B= 20 ×12 =240 sq. m
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