A student has 5 subjects in an examination. The distribution of hard work of 16 hours a day over 5 subjects and marks obtained 400 out of 500 are shown in the charts.
In which subject did the student get the highest outcome of the hard work (ratio of marks to hard work is highest)?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. English.
According to the given pie-chart,
Marks obtained in English = 20% of 400 = 80
Time of hard work in English = 5% of 16 = 0.8
Ratio of Marks to hardwork = 80 : 0.8 = 100 : 1
Marks obtained in Maths = 21% of 400 = 84
Time of hard work in Maths = 40% of 16 = 6.4
Ratio of Marks to hardwork = 84 : 6.4 = 105 : 8
Marks obtained in Science = 18% of 400 = 72
Time of hard work in Science = 20% of 16 = 3.2
Ratio of Marks to hardwork = 72 : 3.2 = 45 : 2
Marks obtained in Economics = 19% of 400 = 76
Time of hard work in Economics = 10% of 16 = 1.6
Ratio of Marks to hardwork = 76 : 1.6 = 95 : 2
Marks obtained in Sociology = 22% of 400 = 88
Time of hard work in Sociology = 25% of 16 = 4
Ratio of Marks to hardwork = 88 : 4 = 22 : 1
Hence the student get the highest outcome of the hard work in English.