Re: [2IIM CAT Prep] RE: [Ascent CAT] permuations
- heythanks a ton buddy
"Venkatraghavan P. ( Graduate Engineer Trainee )" <venkatp.almdch@...> wrote:Solution:In a boat 8 men are thereso 4 on stroke side and 4 on bow sideof the 8 men 3 are fixed (2 on bow and 1 on stroke side)step1: The 4 ppl on the bow side2 are already fixedThe remaining 2 will be selected from the 5 ppl remaining as i canot select that one person on the stroke side (8 - 2 - 1 on stroke side)This is done in 5c2 ways. and the 4 arrange themselves in 4! waysThe remaining 4 go to the stroke side and there is no selectionThey arrange in 4! ways againAnswer: 5c2 x 4! x 4!: 10 x 24 x 24: 5760RegardsP. Venkat Raghavan
From: ascent4cat@yahoogro ups.com on behalf of muhammed shah
Sent: Thu 26-Apr-07 7:52 PM
To: ascent4cat@yahoogro ups.com
Subject: [Ascent CAT] permuationsDisclaimer clausea boat is manned by 8 men of whom, 2 can only row on bow sie and once can only row on stroke side.in how many ways can the crew be arrabged.The answer is 5760..can some one plese explain how??thnx in advance
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