The average marks of students in five subjects in class X in a school is given in the table.

The average percentage marks of which of the following pairs of subjects was the same in 1985?

Science, English

Solving one by one for each option :-

1. Geography, Mathematics

Average %age Marks obtained in Geography

= \(\frac{35}{100}\) = 0.35

Average %age Marks obtained in Mathematics

=  \(\frac{88}{200}\) = 0.44

Not equal

2. Science, Geography

Average %age Marks obtained in Science

= \(\frac{120}{200}\) = 0.6

Average %age Marks obtained in Geography

=\(\frac{35}{100}\)= 0.35

Not equal

3. Science, English

Average %age Marks obtained in Science

= \(\frac{120}{200}\) = 0.6

Average %age Marks obtained in English

=\(\frac{90}{150}\)= 0.6

Average percentage marks of Science, English are equal.

4. English, Mathematics

Average %age Marks obtained in English

=\(\frac{90}{150}\)= 0.6

Average %age Marks obtained in Mathematics

=  \(\frac{88}{200}\) = 0.44

Not equal.

Ans = Science, English