Question

como se dice "el 80% de las preguntas recibe respuesta enmenos de 10 minutos?

Answer 1

the eighty percent of questions gets answers in less than ten minutes 

Answer 2

Hola.
Una te remito dos formas de traducción no literal, ambas mantienen el sentido de la oración:

Eighty percent of the questions get an answer in less than ten minutes?

Eighty percent of the questions is answered in less than 10 minutes?