In case of which one of the following schools the total marks obtained by girls in Maths was 50% more than the total marks obtained by boys in Social from school S2?
Explanation:
Total marks obtained by boys in S2 in social studies = 160 × 50 = 8000
Required total of girls = 8000 + 50% of 8000 = 12000.
∴ Average marks of girls in Maths should be 12000/50 = 240.
This is equal to the average marks obtained by girls in school S3.
Alternately, Since the number of boys or girls in any school is same, we need not calculate total marks.
If the average of boys in S2 in social is 160, the average of girls in maths should be 160 × 1.5 = 240
Girls from S3 have average of 240 in maths.
Hence, option (d).
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