Question

Show that one and only one out of n, n+ 2 or n + 4 is divisible by 3, where n is
any
positive integer.​

Answer 1

Answer:

Step-by-step explanation:

dear student,

let n be any +ve integer ,

n, n+2 , n+4

we put values like n=1,2,3  (because n is a +ve integer )

first we put value n=1

n=1

n+2=1+2=3

n+4=1+4

in these equations ,n+2 is divisible by 3

then we put value n=2

so by in these method every time one number is divisible by 3

hence proved

thank you