Answer:
The correct answer is 85 hamburgers were sold.
Explanation:
Hamburgers = x
Cheeseburgers = 3x (three times the number of hamburgers)
x + 3x = 340 (combined total of hamburgers and cheeseburgers).
4x = 340
x = 340/4
x = 85
The total number of hamburgers sold at the local hamburger shop on Saturday was 85, and the total number of cheeseburgers sold was 255.