Rajeev scored 70% marks in Math and 65% marks in Science. He wants to know how many marks he needs to achieve to secure at least 90% in English. Which feature of spreadsheet is best suited to calculate this?
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Explanation:
on percentage of spreadsheet is best suited to calculate this..
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➤ ➣ ➢ Solution ➤ ➣ ➢
Let x be the marks obtained by Ravi in the third unit test.
Since the student should have an average of at least 60 marks.
3 70+75+x
≥ 60
⇒145 + x ≥ 180
⇒x ≥ 180−145
⇒x ≥ 35
Thus the student must obtain a minimum of 35 marks to have an average of at least 60 marks.
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