Question

A local hamburger shop sold a combined total of 601 hamburgers and cheeseburgers on monday. there were 51 more cheeseburgers sold than hamburgers. how many hamburgers were sold on monday?

Answer 1

Let number of hamburgers be N, and number of cheese burgers be (N + 51).

The total sold: N + (N + 51) = 601
=> 2N + 51 = 601
=> (2N + 51) - 51 = 601 - 51
=> 2N = 550
Divide through by 2:
=> N = 275

There were 275 hamburgers sold on Monday.