Question

6. The length and breadth of a rectangular field
are in the ratio 5: 3. If the cost of cultivating
the field at 25 paise per square metre is 6000,find the perimeter of the field​

Answer 1

Answer:

640m

explanation:

L=5x, B=3x

Area = length × breadth

=5x×3x=15x  ^2

Cost of cultivating 1 square meter =25 paise

15x^2=25*15x^2

=375X^2

=375x^2/100

=6000rs

x^2=1600

x=40

length =5×40=200 m

and breadth =3×40=120 m

Since, perimeter =2( length + breadth)

=2(200+120)

=2(320)=640 m