Question

In 1984, 83% of all new cars sold in the U.S. had air conditioning and 39% had power windows. Use Venn diagrams to determine: b) the minimum possible percentage of these cars that had both air conditioning and power windows; c) the maximum possible percentage of these cars that had neither air conditioning nor power windows.

Answer 1

so you need to start from 100% 1. you know that 83% had air conditioning - so from this result that 100-83 had no air conditioning