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InterviewSolution
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A Pupil's Marks Were Wrongly Entered As 83 Instead Of 63. Due To That The Average Marks For The Class Got Increased By Half (1/2). The Number Of Pupils In The Class Is ? |
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Answer» LET there be X pupils in the CLASS. Total increase in marks =(x*1/2)=x/2 Therefore x/2=(83-63) =x/2=20 =x=40 Let there be x pupils in the class. Total increase in marks =(x*1/2)=x/2 Therefore x/2=(83-63) =x/2=20 =x=40 |
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