in Quantitative Aptitude edited by
264 views
0 votes
0 votes

A sprinter starts running on a circular path of radius $r$ metres. Her average speed (in metres/minute) is $\pi r$ during the first $30$ seconds, $\pi r /2$ during next $1$ minute, $\pi r /4$ during next $2$ minutes, $\pi r/8$ during next $4$ minutes, and so on. What is the ratio of the time taken for the $n$-th round to that for the previous round?

  1. $4$
  2. $8$
  3. $16$
  4. $32$

 

in Quantitative Aptitude edited by
13.4k points
264 views

Please log in or register to answer this question.

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