Question

Of 110 customers at a restaurant, 63 order hamburgers and 71 order french fries. If 22 customers order neither hamburgers nor french
fries, how many customers order both hamburgers and french fries?​

Answer 1

Answer:

46

Step-by-step explanation:

For sets always use this formula. It works for any question involving two sets.

Total number of customers = Number of customers who eat Hamburgers + Number who order French Fries - Number who order Both + Number who order Neither

110 = 63 + 71 - BOTH + 22

BOTH = 63 + 71 +22 -110 = 46