If 7.5% of pizza orders in gotham are for hawaiian pizzas, and you know that there are 100 pizza restaurants in gotham, what can you determine about the number of gotham restaurants that have hawaiian pizzas on their menus?

Answer – 7.5 (OR approximately 8, if 7.5 is not in the options)

WORKINGS

Given, 
There are 100 pizza restaurants in Gotham
7.5 percent of pizza orders in Gotham are for Hawaiian pizzas.

The number of Gotham restaurants that have Hawaiian pizzas on their
menus = 7.5 percent of 100
= 7.5/100 X 100
= 7.5 restaurants

Therefore, 7.5 Gotham restaurants that have Hawaiian pizzas on their menus.

However, since the number of restaurants is integer, we can say that approximately 8 restaurants have Hawaiian pizza on their menus.

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)