Question

A pizza restaurant receives an order for 297 pizzas. How many cooks should be assigned to this task if each cook prepares an equal number of pizzas?

• A. Only 3
• B. Only 5
• C. Only 9
• D. 3 or 9

Answer 1

The correct option is D 3 or 9

Given that the pizza restaurant receives order for 297 pizzas and each cook prepares an equal number of pizzas,

As 297 is divisible by 3 and 9 because sum of digits of 297 ($2+9+7=18$) is a multiple of 9.
$\therefore$ Order for 297 pizzas can be equally divided among 3 or 9 cooks.