Question

The table below shows the numbers of vanilla,

chocolate, and mint ice cream cones sold in one week
by three students at an ice cream shop. If Marcia sold
more cones than either Jan or Tomas, which of the
following must be true?

Answer 1

marcia must have sold at least 22 chocolate cones.

Explanation:

Jan sold a total of 65 cones (20+15+30). Tomas sold a total of 68 cones (20+18+30).

If Marcia sold more cones than Jan or Tomas, she had to have sold more than 68 cones in total. 30+17 = 47. I subtracted 68-47, to see how many chocolate cones she should have sold to match the number of cones Tomas sold, which is 21 chocolate cones. Therefore, to surpass Tomas in the total number of cones sold, she had to have sold at least 22 chocolate cones.