To answer this question, we need to follow the given information step by step.
First, we are told that 72% of the 1,000 dogs are male. To find the number of male dogs, we can multiply 1,000 by 0.72:
Number of male dogs = 1,000 * 0.72 = 720
Next, we are told that among the male dogs, 3 out of 5 are over the age of 5. To find the number of male dogs age 5 or older, we can multiply the number of male dogs by the fraction 3/5:
Number of male dogs age 5 or older = 720 * (3/5) = 432
Therefore, the correct answer is A) 432.