Every carton weighs 16 kg plus 1/5 of a carton.
How much does a carton and a half weigh?

Solution to the Problem:

The answer is 30 kg.

Let c = weight of one carton.
Then c = 16 + (1/5) c.
Then 4/5 c = 16.
Then c = 20 kg.
So, a carton and a half = 30 kg.

Correctly solved by:

1. James Alarie Flint, Michigan
2. Dawn Chapman Columbus Technical College,
Columbus, Georgia
3. Kyler Flake Mountain View High School,
Mountain View, Wyoming