Conversation so far:
What university did Achebe attend?
Known as University College (now the University of Ibadan), it was an associate college of the University of London. Achebe was admitted as a Major Scholar in the university's first intake
What year did Chinua Achebe attend?
In 1948
What did Chinua Achebe study at the university?
He was given a bursary to study medicine
What happened when Chinua Achebe changed his field of study?
After reading Joyce Cary's Mister Johnson he was so disturbed by the book's portrayal of its Nigerian characters as either savages or buffoons that he decided to become a writer.

Question: How did his older brother help with his tuition?
Self-contained rewrite: How did Chinua Achebe's older brother help with his tuition?