Question

the length and breadth of a rectangular field are in the ratio of 9 is 25 if the area of the field is 14580 square M find the cost of surrounding the field with friends at the rate of rupees 3.25 per metre

Answer 1

Here is your solution

Given :-

The ratio of length and breadth of the given rectangle is 9:25

Let the length and breadth be 25x and 9x

as area of rectangle = length × breadth
=>14580=25x × 9x
=>14580= 225x^2
=> 14580/225 =x^2
=> x^2 = 64
=>x=8(rounded)

length = 25x=25×8=200
and breadth = 9x=9×8=72

perimeter of the rectangle=2×(l+b)
=> 2 (200+72)
=>2×272
=>544m

Cost of fencing 3.25/meter=>3.25×544= Rs1768.

hope it helps you