plz answer the 4th question step by step so i can understand plz plz I don't want to know only answer I want the explanation plz answer it step by step ✌✌✌✌✌✌✌✌✌✌✌☺️☺️☺️❤️❤️❣️❤️❣️❤️✌❤️✌❤️✌❤️✌♥️♥️✌♥️✌♥️✌♥️✌♥️✌♥️✌
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hello!!!
we need to add the number of students who got more than or equal to 60 marks
therefore
number of students who got 60 to 70 marks =10
number of students who got 70 to 80 marks =5
number of students who got 80 to 90 marks =3
number of students who got 90 to 100 marks =3
adding all we get ,
10 + 5 + 3 + 3 =21
therefore the answer is 21
option c
hope it helps
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