In an examiation preeti scored 60 out of 75 in science,84 out of 100in maths,36 out of 50 in hindi and 30 out of 45 in english..what is her aggregate percentage of marks
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We can use ratio to solve it
Science 60:75
or 4:5 i.e 4/5 of 100%=80 marks
Maths 84 marks
Hindi 36:50
36/50 of 100%=72 marks
English 30:45
or 2:3 i.e 2/3 of 100%= 66.5 marks (approx)
Total marks obtained out of 400 = 80+84+72+66.5= 302.5 marks
Aggregate = 302.5/400×100= 75.625% approx
Science 60:75
or 4:5 i.e 4/5 of 100%=80 marks
Maths 84 marks
Hindi 36:50
36/50 of 100%=72 marks
English 30:45
or 2:3 i.e 2/3 of 100%= 66.5 marks (approx)
Total marks obtained out of 400 = 80+84+72+66.5= 302.5 marks
Aggregate = 302.5/400×100= 75.625% approx
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