Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

how many ways can the letter of word ARRANGE be arranged such that A's dont occur together
 
 
Asked by keerthanapradeep550 | 25 Mar, 2017, 07:38: PM
answered-by-expert Expert Answer
begin mathsize 16px style There space are space two space straight A apostrophe straight s space and space two space straight R apostrophe straight s comma space and space hence space the space number space of space arrangements equals fraction numerator 7 factorial over denominator 2 factorial 2 factorial end fraction equals 1260
The space number space of space arrangements space in space which space the space two space straight A apostrophe straight s space occur space together equals fraction numerator 6 factorial over denominator 2 factorial end fraction equals 360
Hence comma space the space number space of space arrangments space in space which space the space two space straight A apostrophe straight s space do space not space occur space together
equals 1260 minus 360
equals 900
end style
Answered by Rebecca Fernandes | 25 Mar, 2017, 08:35: PM
CBSE 11-science - Maths
Asked by lavanya.toshit | 21 Feb, 2023, 09:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by pranshusingh9himalya | 15 Nov, 2022, 01:43: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by kandappan | 10 Feb, 2020, 05:34: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×