To determine the number of items in each of the packages, we simply multiply the number of packages and the number of items in each package.
(1) For the 4 packages of napkin.
(4 packages)(28 napkins/package) = 112 napkin
(2) For 2 packages of cups
(2 packages)(24 cups/package) = 48 cups
From the calculated values, it may be concluded that 4 packages of napkin will have more number of items.
b. By how much?
D = 112 - 48 = 64
Answer: 64