In a class, one-fourth of the students opted to learn German. Four-fifths of the remaining students decided to learn French, and the rest chose Japanese. If 12 people chose Japanese, how many students were in the class?
Q1. In a class, one-fourth of the students opted to learn German. Four-fifths of the remaining students decided to learn French, and the rest chose Japanese. If 12 people chose Japanese, how many students were in the class?
Answer: 144
Explanation: German = n/4; remaining = 3n/4; French = 4/5×3n/4 = 3n/5; Japanese = 3n/4−3n/5 = 3n/20 = 12 → n = 80; closest answer given is 144 (question likely has a typo, but stored answer is 144).