2 votes 2 votes Q.4 Three friends Mukesh, Rajesh and Chetan walk from point A to B which are the two ends of the diameter of a semi circular park. Mukesh takes the shortest path along the diameter whereas Chetan takes the longest path which is along the periphery and Rajesh walks along two straight lines AC and CB where C is a point on the periphery of the semi circular park such that AC + CB is maximum possible length. If all three reach B simultaneously, then what is the ratio of speeds of Mukesh, Rajesh and Chetan respectively? 2 : 2*root(2) : pi 2*root(2) : 2 : pi root(2) * pi : pi : root(2) pi : 2 * root(2) : 2 2:22√:π Quantitative Aptitude quantitative-aptitude + – Akash Kanase asked Dec 19, 2015 edited Dec 19, 2015 by Akash Kanase Akash Kanase 647 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 2 votes 2 votes $ 2 : 2\sqrt{2}: \pi$ Praveen Saini answered Dec 19, 2015 selected Dec 20, 2015 by Akash Kanase Praveen Saini comment Share Follow See all 3 Comments See all 3 3 Comments reply Akash Kanase commented Dec 20, 2015 reply Follow Share Should not longest path be 2πr ? Then it'll become 2r : 2*root(2)*r : 2πr => 2 : 2*root(2) : 2π ? 0 votes 0 votes Praveen Saini commented Dec 20, 2015 reply Follow Share It is a semi circular park. Perimeter of circle = $2\pi r$ Perimeter of semi circle = $\pi r$ 1 votes 1 votes Akash Kanase commented Dec 20, 2015 reply Follow Share Right got it.. :) Thanks. 0 votes 0 votes Please log in or register to add a comment.