CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A field is in the form of a circle. A fence is to be erected around the field. The cost of fencing would be Rs. 2640 at the rate of Rs. 12 per metre. Then, the field is to be thoroughly ploughed at the cost of Rs. 0.50 per m2. What is the amount required to plough the field? [Take π=227]

Open in App
Solution

Length of the fence =Total CostRate per metre=264012=220 m

Now, 2πr=220

2×227×r=220

r=35 m

Area=πr2=π(35)2

Cost of ploughing the whole field =π(35)2×0.50=Rs. 1925


flag
Suggest Corrections
thumbs-up
6
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Circumference of Circle
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon