Question: If the ratio of the ages of A and B is 3:4 and the sum of their ages is 56, what is A\'s age?
Options:
Correct Answer: 28
Solution:
Let A\'s age be 3x and B\'s age be 4x. Then, 3x + 4x = 56, 7x = 56, x = 8. A\'s age = 3x = 24.