Question

the table to the right gives the amount of several farm products (in millions of metric tons) exported from a certain country in the years 2011 and 2016.
list the elements of the set of farm products where exports increased from 2011 to 2016.

choose the correct answer below.

a. {wheat, rice, barley}
b. {rice, corn}
c. {wheat, rice}
d. {corn, wheat}

Explanation:

Step1: Compare Wheat exports

In 2011, Wheat exports were \(26.8\) million metric tons. In 2016, they were \(35.8\) million metric tons. Since \(35.8>26.8\), Wheat exports increased.

Step2: Compare Corn exports

In 2011, Corn exports were \(30.1\) million metric tons. In 2016, they were \(27.15\) million metric tons. Since \(27.15 < 30.1\), Corn exports decreased.

Step3: Compare Rice exports

In 2011, Rice exports were \(5.6\) million metric tons. In 2016, they were \(10.8\) million metric tons. Since \(10.8>5.6\), Rice exports increased.

Step4: Compare Barley exports

In 2011, Barley exports were \(6.8\) million metric tons. In 2016, they were \(6.8\) million metric tons. Since \(6.8 = 6.8\), Barley exports did not increase.

Answer:

C. (Wheat, Rice)