Discussion

Explanation:

English : $\frac{\left(116+168+130+150+144\right)\times 50}{250\times 300}\times 100$ = $\frac{\left(116+168+130+150+144\right)}{5\times 300}\times 100$ = 47.2%

Maths : $\frac{\left(250+280+240+280+320\right)\times 50}{250\times 400}\times 100$ = $\frac{\left(250+280+240+280+320\right)}{5\times 400}\times 100$ = 68.5%

Science : $\frac{\left(180+180+150+192+184\right)\times 50}{250\times 300}\times 100$ = $\frac{\left(180+180+150+192+184\right)}{5\times 300}\times 100$ = 59.1%

Social : $\frac{\left(150+168+192+180+184\right)\times 50}{250\times 300}\times 100$ = $\frac{\left(150+168+192+180+184\right)}{5\times 300}\times 100$ = 58.3%

Hindi : $\frac{\left(104+100+96+112+96\right)\times 50}{250\times 200}\times 100$ = $\frac{\left(104+100+96+112+96\right)}{5\times 200}\times 100$ = 50.8%

The highest is in Maths.

Hence, option (b).

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