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Student Result Grading (if, else if , else)


 JS code here

var marks = prompt("Enter your Subjects Mark : ");

if(marks>100 || marks<0)
document.write("Invalid Marks");

else if(marks>=80 && marks<=100)
document.write("gread : A+");

else if(marks>=70 && marks<=79)
document.write("gread : A");

else if(marks>=60 && marks<=69)
document.write("gread : A-");

else if(marks>=50 && marks<=59)
document.write("gread : B");

else if(marks>=40 && marks<=49)
document.write("gread : C");

else if(marks>=33 && marks<=39)
document.write("gread : D");

else
document.write("gread : Fail");

var marks = prompt("Enter your Subjects Mark : ");

if(marks>=80)
document.write("gread : A+");

else if(marks>=70)
document.write("gread : A");

else if(marks>=60)
document.write("gread : A-");

else if(marks>=50)
document.write("gread : B");

else if(marks>=40)
document.write("gread : C");

else if(marks>=33)
document.write("gread : D");

else
document.write("gread : Fail");

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