Tres compañeros de piso pagan los gastos de agua de forma proporcional a lo que usanla ducha. Ana se ducha cada día; Pedro, cada 2 días, y Bego, cada 3. ¿Cuánto tiene quepagar cada uno por los 23 € del recibo del agua?

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.

That’s is personal so don’t tell you is is about you think sorry