<!DOCTYPE html>
<html lang="ko">
<head>
<meta name="viewport" content="width=device-width">
<meta charset="UTF-8">
<link rel="stylesheet" href="https://meyerweb.com/eric/tools/css/reset/reset.css">
<title>Grades based on average</title>
</head>
<body>
<script>
var korean = 88;
var english = 72;
var math = 92;
var average = (korean + english + math) / 3;
if (average >= 90) {
console.log('Average: ' + average);
console.log('Grade: A');
}
else if (average >= 80) {
console.log('Average: ' + average);
console.log('Grade: B');
}
else if (average >= 70) {
console.log('Average: ' + average);
console.log('Grade: C');
}
else if (average >= 60) {
console.log('Average: ' + average);
console.log('Grade: D');
}
else {
console.log('Average: ' + average);
console.log('Grade: F');
}
var grade = 'F';
if (average >= 90) grade = 'A';
else if (average >= 80) grade = 'B';
else if (average >= 70) grade = 'C';
else if (average >= 60) grade = 'D';
console.log('Average: ' + average);
console.log('Grade: ' + grade);
</script>
</body>
</html>
