Bunuel wrote:

If 1/4 of the juniors is equal to 3/5 of the seniors, what fraction of the students in the room are juniors?/

\(\frac{1}{4}J\) = \(\frac{3}{5}S\)

So, J = \(\frac{12}{5}s\)

Bunuel wrote:

Every student in a room is either a junior or a senior. There is at least one junior and at least one senior in the room.

So, Total no of Students in the room is = junior + senior

Or, Total no of Students in the room is = \(\frac{12}{5}s\)+ \(s\)

Or, Total no of Students in the room is = \(\frac{17}{5}s\)

Bunuel wrote:

What fraction of the students in the room are juniors?

Required Fraction is = Juniors/Total Number of Students

Or, Required Fraction is =12s/5/17s/5

Or, The Required Fraction is = 12/17

Hence answer is (D) 12/17
_________________

Thanks and Regards

Abhishek....

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