Answer :

Given:

Rate of fencing a circular field = Rs. 25/m


Cost of fencing a circular field = Rs. 5500


Rate of ploughing the field = 50p/m2 = Rs. 0.5/m2


Let the radius of circular field be ‘r’ and the length of the field fenced be ‘x’ m.


Then, 25 × x = 5500


x = = 220 m


Circumference of circular field = 2πr


220 = 2πr


220 = 2 × × r


r =


r = 35 m


Area of the circular field = πr2


= × 35 × 35


= 22 × 5 × 35


= 3850m2


Now, cost of ploughing the field = Rate of ploughing the field × Area of the field = 0.5 × 3850


= Rs. 1925


Hence, the cost of Ploughing the field is Rs. 1925.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Right Circular CylinderRight Circular CylinderRight Circular Cylinder45 mins
Right Circular Cone And FrustumRight Circular Cone And FrustumRight Circular Cone And Frustum43 mins
Sphere and HemisphereSphere and HemisphereSphere and Hemisphere16 mins
Cube and CuboidCube and CuboidCube and Cuboid41 mins
Area Related to Circles- Important Formula and ConceptsArea Related to Circles- Important Formula and ConceptsArea Related to Circles- Important Formula and Concepts59 mins
Heights and Distances-IHeights and Distances-IHeights and Distances-I45 mins
Resources and Development RevisionResources and Development RevisionResources and Development Revision28 mins
History - Concept and QuestionsHistory - Concept and QuestionsHistory - Concept and Questions57 mins
Corrosion: Types, Pros and ConsCorrosion: Types, Pros and ConsCorrosion: Types, Pros and Cons41 mins
Revision on Substitution and  Elimination MethodRevision on Substitution and  Elimination MethodRevision on Substitution and Elimination Method44 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses
RELATED QUESTIONS :

The cost of fenciRS Aggarwal - Mathematics