Si tu simulación da un rendimiento del 94% y tu cálculo manual del 120%, algo está mal. Eso te evita necesitar un solucionario.
He flipped back to the textbook, open on the desk. He looked at the printed answer key in the appendix of the Fraile Mora book. 96.5%. Then he looked at the 'Exclusive' manual in his hand. 94.2%.