wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

A rectangular ground is 90m long and 32m broad. In the middle of the ground there is a circular tank of radius 14m. Find the cost of turfing the remaining portion at the rate of Rs.50 per square metre.

Open in App
Solution

Area of the rectangular ground =90m×32m=(90×32)m2=2880m2
Given:
Radius of the circular tank (r)=14m
Area covered by the circular tank =πr2=227×14×14
=616m2
Remaining portion of the rectangular ground for turfing = (Area of the rectangular ground - Area covered by the circular tank)
=(2880616)=2264m2
Rate of turfing =Rs.50 per sq. metre
∴ Total cost of turfing the remaining ground =Rs(50×2264)=Rs1,13,200


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Visualising Area of a Circle
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon