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anonymous
 one year ago
Find the number of 5digit numbers that can be formed the digits 1,2,4,6,8 (when no digit is repeated) but,
i)the digits 2 and 8 are next to each other
ii)the numbers2 and 8 are not next to each other
Best and simplest solution gets a medal
anonymous
 one year ago
Find the number of 5digit numbers that can be formed the digits 1,2,4,6,8 (when no digit is repeated) but, i)the digits 2 and 8 are next to each other ii)the numbers2 and 8 are not next to each other Best and simplest solution gets a medal

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ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1put 2, 8 in one bag : dw:1434301423566:dw

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1then you see just \(4\) objects, which can be permuted in \(4!\) ways also 2,8 inside the bag can be permuted in \(2!\) ways for each of the above permutations so total possible 5 digit numbers using the given digits w/o repetition that contain 2,8 together would be \(4!\times 2!\)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0stunning @ganeshie8 what about part ii)? I also found the solution but the method was too long and complicated thanks but please answer the second part too....

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0or is it like 5!  48?

ganeshie8
 one year ago
Best ResponseYou've already chosen the best response.1that will do for part ii!
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