Pearson+ LogoPearson+ Logo
Start typing, then use the up and down arrows to select an option from the list.
Multiple Choice

A boy and his father are in a car crash. The father is killed, and the boy is rushed to the hospital. At the hospital, the doctor says, "I cannot operate on this boy. He's my son!" How is this possible? If a person thinks about this problem without using a particular method, and the answer just comes to them after a period of time, the person solved this problem with


Watch next

Master Working backward to solve problems - Maurice Ashley with a bite sized video explanation from TED-Ed

Start learning