Simplify the following text for a Grade 7 native English-speaking person.
Original: Troyat received his first literary award , Le prix du roman populaire , at the age of twenty-four , and by twenty-seven , he was awarded the Prix Goncourt .
Simplified: He won his first literary award at the age of 24 , `` le prix du Roman populaire '' . At the age of 27 he was awarded the prestigious Prix Goncourt .