Question

Neha scored 75% in Science, 95% in Mathematics and 70% in English. If the maximum marks in these subject were 80,100 and 70, respectively, find her aggregate percentage.

Answer 1

Percentage in science $=75\%$

Total marks$=80$

$\Rightarrow$Marks obtained in science $=75\%$ of $80$

$=\frac{75}{100}\times 80=60$ marks

In mathematics$=95\%$

Total marks$=100$

$\Rightarrow$ Marks obtained $=95\%$ of $100$

$=\frac{95}{100}\times 100=95$ marks

In English, marks$=70\%$

Total$=70$marks

$\Rightarrow$ Marks obtained$=70\%$ of $70$

$=\frac{70}{100}\times 70=49$ marks

$\Rightarrow$ Total marks obtained$=60+95+49$

$=204$ marks

Maximum marks$=80+100+70$

$=250$ marks

$\Rightarrow$ Aggregate percentage$=\frac{204}{250}\times 100$

$=\frac{408}{5}=81.6\%$.