Two sub-sandwich-shop workers serve approximately 100 sandwiches daily. Each worker can prepare four sandwiches in five minutes. Working together, how many sandwiches can they prepare in an hour?

as each worker can prepare 4 sandwiches/5miutes and there are 2 workers,

we can say in total 8 sandwiches/5minutes

Multiply denominator and numerator by 12.

96 sandwiches / 60minutes

= 96 sandwiches / hr

working together, they can make 96 sandwiches in an hour.