A farmer can plow the corn field in 12 days. After working for 5 days, his son joins him and together they finish plowing the field in 4 days. How many days would it take the son to plow the corn field alone? (A) 9 days (B) 10 days (C) 11 days (D) 13 days (E) 16 (…)
Descubre más desde Clases particulares GMAT
Suscríbete y recibe las últimas entradas en tu correo electrónico.