Question

7) A rectangular lawn of length 50 m and breadth 35 m is to be surrounded externally by a path which is 2 m wide. Find the cost of surfing the path at the rate of $3 per m².

Answer 1

cost is $. IO68,Answer to this qn

Answer 2

Question:-

A rectangular lawn of length 50 m and breadth 35 m is to be surrounded externally by a path which is 2 m wide. Find the cost of surfing the path at the rate of $3 per m².

solution:-

Let, L be the length of rectangle and B be

the breadth rectangle.

By Question:-

We know formula of

=> Area of rectangle = L × B

=> Area of rectangle = 50 × 35

=> Area of rectangle = 1750 m²

=> X = 1750 m²

we know that length and breadth increase by 2 m from their both ends.

so,

=> L = 50 + 2 + 2 = 54 m.

=> B = 35 + 2 + 2 = 39 m.

We know formula of

=> Area of rectangle + path = L × B

=> Area of rectangle + path

= 54 × 39

=> Area of rectangle + path

= 2106 m²

=> Z = 2106 m²

=> Area of path =( Z ) - ( X )

=> Area of path = 2106 - 1750

=> Area of path = 356 m²

Area of path 336 m².

To finding cost of surfing the path

=> Area × $ 3 = 356 × 3 = $ 1068

Hence cost of surfing the path

is $ 1068

i hope it helps you.