un total de 60 clientes potenciales visitaron una tienda de articulos para computadoras. De ellas, 52 compraron discos compactos y 12 compraron toner para impresoras. Si,6 compraron papel y discos,9 compraron discos y cintas y 5 compraron papel y toner. ¿cuantas compraron los 3 articulos?

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.