if-else.js

function getGrade(score) {
    let grade;
    // Write your code here
    if(score <= 30 && score > 25)
        grade='A';
    else if(score <= 25 && score > 20)
        grade = 'B';
    else if(score <= 20 && score > 15)
        grade = 'C';
    else if(score <=15 && score > 10)
        grade = 'D';
    else if(score <= 10 && score > 5)
        grade = 'E';
    else grade = 'F';

    return grade;
}