You can write the information of the first sentence as -
n = 45x + 18
where x can be 0,1,2,3ā¦
Now, you can take 9 as a common factor and rewrite as -
n = 9(5x + 2)
ā which tells us that n is divisible by 9
Thanks but Iām not looking for the solution actually. I would like to know how 45*0 has a remainder of 18 in this case.
(45*0 + 18) has a remainder of 18 right?
got it. thanks
1 Like