Question

The length of a rectangular field is thrice it's breadth. If the area of the field is 7500m square ,find the cost fencing the field at the rate of 10rs per meter

Answer 1

The length of a rectangular field is thrice its breadth ...

so.. Let Breadth be x..then length will be 3x

we know that area of the Rectangle= L ×B

given Area = 7500m^2

x×3x = 7500

3x^2 = 7500

x^2 =2500

x=50

so length= 3x = 3×50 = 150m

breadth= x = 50m .


Perimeter= 2(L +b)

=2(150+50)

=2(200)

=400m

cost of fencing Per metre = 10rs..

then for 400m..its 400×10=4000rs

Answer 2

hey mate here is your answer