Geometry probability

Question

An employee was conducting a service at the local supermarket. In his survey, he found that 63% of the shoppers intended to purchase produce on their trip. 80% of those shoppers intended to purchase both fruits and vegetables. What percentage of total shoppers surveyed intend to purchase only fruits or vegetables (not both)?

Answer 1

.8 * .63 = fraction who want to purchase both = .504 of the total

.2 * .63 = fraction who want to purchase one or the other but not both = .126

In % 12.6 % want to purchase one or the other but not both.