# FAQ: Booleans and Comparison Operators - Elseif Statements

This community-built FAQ covers the “Elseif Statements” exercise from the lesson “Booleans and Comparison Operators”.

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This exercise can be found in the following Codecademy content:

## FAQs on the exercise Elseif Statements

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Could someone explain why this is not an acceptable answer to this exercise?

function whatRelation(\$percentage)
{
if (\$percentage === 100) {
echo “identical twins”;
} elseif (\$percentage < 100) {
echo “parent and child or full siblings”;
} elseif (\$percentage < 35) {
echo “grandparent and grandchild, aunt/uncle and niece/nephew, or half siblings”;
} elseif (\$percentage < 14) {
echo “first cousins”;
} elseif (\$percentage < 6) {
echo “second cousins”;
} elseif (\$percentage < 3) {
echo “third cousins”;
} elseif (\$percentage < 1) {
echo “not genetically related”;
}
}

Cheers!

Suppose the percentage of shared DNA is 12. According to the specifications, this should result in a statement of “first cousins”. But, this is not what will be printed if you use the code suggested by you.

The first if condition (\$percentage === 100) will be FALSE, so the next condition will be checked.
The second condition (\$percentage < 100) will be TRUE because indeed 12 is less than 100. So, the wrong message “parent and child or full siblings” will be printed.

You don’t need the elseif (\$percentage < 100) condition. But even after deleting this particular condition, the other conditions also result in flawed logic. Instead consider using conditions involving the > or >= operator. That will help you in capturing the correct behavior.