Question

The ratio of the length of a field to its width is 7 ratio 4. find its width if the length is 140. please answer​

Answer 1

Step-by-step explanation:

Let the length of the field be 7x and breadth be 4x.

7x×4x=14580

45x

2

=14580

x

2

=324

x=18

Hence, length=162m and breadth=90m.

Perimeter = 2(l+b)=2(162+90)=2(252)=504m

Therefore,

Cost of fencing = 504×3.25=1638 Rs.