Question

In an examination, Preeti scored 60 out of 75 in Science, 84 out of 100 in Mathematics, 36 out of 50 in Hindi and 30 out of 45 in English. (i) In which subject her performance is worst? (ii) In which subject her performance is the best? (iii) What is her aggregate percentage of marks? ​

Answer 1

Answer:

Refer the attachment...

mark me as brainliest

Answer 2

Answer:

$percentage \: in \: science = \frac{60}{75} \times 100 = 80\%\\percentage \:in \: maths = \frac{84}{100} \times 100 = 84\% \\ percentage \: i n \: hindi = \frac{36}{50} \times 100 = 72\% \\ percentage \: i n \: english = \frac{30}{45} \times 100 = 66.66\%$

I) Her performance is worst in English with 66.66%

II) Her performance is best in Maths with 84%

Step-by-step explanation:

$score \: in \: all \: subjects = \frac{60}{75} . \frac{84}{100} . \frac{36}{50} . \frac{30}{45} \\ total \: marks = 75 + 100 + 50 + 45 = 270marks \\ aggregate\% = \frac{60 + 84 + 36 + 30}{270 } \times 100\\ = \frac{210}{270} \times 100 \\ = 77.77\%$