0 votes 0 votes The length of a rope, to which a cow is tied, is increased from $19$ m to $30$ m. How much additional ground will it be able to graze ? Assume that the cow is able to move on all sides with equal ease. Use $\pi = \frac{22}{7}$ in your calculations. $1696$ sq m $1694$ sq m $1594$ sq m $1756$ sq m Quantitative Aptitude nielit2017dec-scientistb geometry + – Lakshman Bhaiya asked Mar 30, 2020 edited Jun 29, 2020 by soujanyareddy13 Lakshman Bhaiya 13.7k points 820 views answer comment Share See all 0 reply Please log in or register to add a comment.
2 votes 2 votes Option B. 1694 sq m Area of circle = π$r^{2}$ Additional ground will cow be able to graze = Outer circle – Inner circle = π$30^{2}$ – π$19^{2}$ =$\frac{22}{7}$[900 – 361] = $\frac{22}{7}$ * 539 = 1694 Madhav answered Apr 27, 2020 Madhav 3.6k points comment Share See all 0 reply Please log in or register to add a comment.
0 votes 0 votes For detailed solution, https://edurev.in/question/1497248/The-length-of-a-rope--to-which-a-cow-is-tied--is-increased-from-19-m-to-30-m--How-much-additional-gr neethu_seb answered Dec 10, 2022 neethu_seb 3.3k points comment Share See all 0 reply Please log in or register to add a comment.