Question

At a particular restaurant, hamburgers are priced $3 each, 2 for $5 and 5 for $9. What is the maximum number of hamburgers that can be purchased for $48

Answer 1

5 for $ 9.......48/9 = 5 remainder 3

5 * 5 = 25 burgers......and u got $ 3 left over...so u can buy another burger because one burger costs $ 3.....
so in total, you can buy 26 burgers <==

Answer 2

5 for $9 so you can order 5 times of 5 for $9 = 5 x $9 = $45 (total 5x5 = 25 hamburgers )

$48 - $45 = $3 left
so you can order 1 more for $3 each

Answer:
Total 26 hamburgers for $48