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7266325
PERMUTATION
Description
Mind Map on PERMUTATION, created by DIVYA NADESAN on 16/12/2016.
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Mind Map by
DIVYA NADESAN
, updated more than 1 year ago
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Created by
DIVYA NADESAN
over 7 years ago
26
2
0
Resource summary
PERMUTATION
nPr=n!/(n-r)!
1.SIMPLE
GOD=3!=6 CHAIR=5!=120 VISUAL=6!=720
APPLE=5!/2!=120/2=60 PROMOTION=9!/3!=60480 ATTEMPT=7!/3!=840
PREPARED=8!/(2!*2!*2!)=5040 ENGINEERING=11!/(3!*3!*2!*2!)=2,77,200
2.VOWELS TOGETHER
DAUGHTER=DGHTR(AUE)=6!*3!=4320 DIRECTOR=DRCTR(IEO)=(6!*3!)/2!=2160
3.VOWELS NEVER TOGETHER
EXTRA=XTR(EA)=5!-4!*2!=120-48=72 APPLE=PPL(AE)=5!/2!-(4!*2!)/2!=60-24=36
4.CIRCULAR PERMUTATION
(N-1)!
5.OTHERS
HOW MANY 3 DIGIT NUMBER WE CAN FORM USING THE DIGITS 2,3,4,5,6?
nPr=n!/(n-r)! =5P3=5!/2!=60
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