Question

Derek bought 4 pounds of tomatoes at the grocery store. This included grape, roma, and plum tomatoes. If Derek bought 2 pounds of grape tomatoes and 14 ounces of roma tomatoes, how many ounces of plum tomatoes did he buy?

Answer 1

18 ounces

Explanation:

Answer 2

The answer is he used 18 ounces.
Convert this first to pounds to ounces. We know that there are 16 ounces in one pound, so therefore he 4 x 16 = 64. So he has a total of 64 ounces.
Two pounds of grape tomatoes would be equal to 32 ounces
The roma tomatoes are when computed is 14 ounces.
32 + 14 = 46 (Grape + Roma)

Total - (Grape + Roma) = Plum

64 - 46 = 18