Question

The length and breadth of the rectangular plot are in the ratio 5:3. At the rate of rupees 20 per metre it will cost the rupees 6400 to fence the plot . what are the dimensuons of the plot​

Answer 1

Answer:

lenght = 100, breadth = 60

Step-by-step explanation:

cost of fencing per metre = rupees 20

if total cost is rupees 6400 , then perimeter = (6400 / 200) m

                                                                          = 320 m          

now , let lenght be 5x and breadht  be 3x

A/Q   => 2 ( 5x + 3x ) = 320

         => 16x = 320

         => x = 320 / 16

         => x = 20

    therefore, lenght = 5x = 5 * 20 = 100 m

                      breadth = 3x = 3* 20 = 60 m