Question

The Greasy Grab Bag claims that customers can make 20 different meal combinations from the menu items. If the Greasy Grab Bag has 4 sandwiches, 3 sides, and 2 drinks, which of the following is correct?
The Greasy Grab Bag is understating the number of meal combinations.
The Greasy Grab Bag is stating the correct number of meal combinations.
The Greasy Grab Bag is overstating the number of meal combinations.

Answer 1

The Greasy Grab Bag is understating the number of meal combinations.
sw1 + s1 + 1d
sw1 + s1 + 2d
sw1 + s2 + 1d
sw1 + s2 + 2d = 6 possible
sw1 + s3 + 1d
sw1 + s3 + 2d

sw2 + s1 + 1d
sw2 + s1 + 2d
sw2 + s2 + 1d
sw2 + s2 + 2d = 6 possible
sw2 + s3 + 1d
sw2 + s3 + 2d

sw3 + s1 + 1d
sw3 + s1 + 2d
sw3 + s2 + 1d
sw3 + s2 + 2d = 6 possible
sw3 + s3 + 1d
sw3 + s3 + 2d

sw4 + s1 + 1d
sw4 + s1 + 2d
sw4 + s2 + 1d
sw4 + s2 + 2d = 6 possible
sw4 + s3 + 1d
sw4 + s3 + 2d

6 + 6 + 6 + 6= 24
24 is greater than 20