TS ICET 24 May 2018 Shift 1 Paper

Question : 108 of 200

Marks: +1, -0

The cost of fencing around a circular field at Rs. 5 per meter is Rs. 220. What is the total cost of cultivating the field at Rs. 10 per square meter?

₹1440
₹1540
₹1240
₹1560

Validate

Solution:

Let the radius of the circular field be r meter.
Given that,

2 π r × 5=220 ⇒ r=7

Required answer,

=π r^{2} × 10=\;{22}/{7} × 7^{2} × 10

=₹\;1540

Go to Question:

Prev Question

Next Question