Need help with If Else "admission in pairs"

Question

https://www.sololearn.com/learning/1024/1137/1398/1
I am able to get test cases 1-4 a green check mark with the following code, but am unable to get get Test Case 5 corrected.
the code:
function main() {
var numberGuests = parseInt(readLine(), 10)
// Your code here
var pair = 2;
if (pair = numberGuests/2%2 == 0) {
console.log('Right');
}
else {
console.log('Wrong');
}
}
When I change the "if (pair = numberGuests/2%2 == 0)" to have a 1 instead of a 0, then
cases 2, 4, and 5 check correct, but not 1 and 3. Can someone help me understand what I am doing incorrectly in this exercise?

Answer 1

I think it's not necessary to declare variable pair.
if (numberGuests%2==0)