in Quantitative Aptitude edited by
401 views
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.

  1. $1696$ sq m
  2. $1694$ sq m
  3. $1594$ sq m
  4. $1756$ sq m
in Quantitative Aptitude edited by
12.0k points
401 views

1 Answer

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

by
3.2k points
Answer:

Related questions

Quick search syntax
tags tag:apple
author user:martin
title title:apple
content content:apple
exclude -tag:apple
force match +apple
views views:100
score score:10
answers answers:2
is accepted isaccepted:true
is closed isclosed:true