Question

The length and breadth of rectangular garden is in ratio 4:3 . If the area is 7500m , find the cost of fencing the garden at the rate of rs 6 per metre.

Answer 1

Step-by-step explanation:

Let the length and breadth of the rectangular garden be 4x and 3x.

4x×3x= 7500

12x²=7500

x²=7500÷12

x²= 625

x= √625

x= 25cm

Length= 4×25= 100cm

Breadth = 3×25= 75cm

Perimeter of the rectangular garden =2(l+b)

=2(100+75)

=2×175

=350cm

Cost of fencing the garden = (350×6)rs

= 2100rs.

Answer 2

Cost of fencing = 2100₹

Step-by-step explanation:

Given that

Length /Breadth = 4:3

Area of garden = 7500 m²

Rate of fencing garden = 6 ₹/meter

Solutions

4(length parts ) x 3(Breadth parts) =7500

4X*3X=7500

12X²=7500

X=25

Length =4*25=100m

Breadth =3*25=75m

Cost of fencing= rate of fencing per meter x perimeter of garden (2L+2B)

Cost of fencing = 6 x ( 2x100+2x75)

= 6×(350) =2100₹

Cost of fencing =2100₹

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