Probability of Resident Having a Garden

In a certain city, it is known that 60% of the residents own their homes, while the remaining 40% rent their homes. Additionally, among the homeowners, 75% have a garden, while among the renters, only 25% have a garden. A resident is chosen at random. Let:

Quantity A: The probability that the resident chosen at random has a garden.

Quantity B: The probability that the resident chosen at random does not have a garden.

What is the relationship between Quantity A and Quantity B?