Let's assume that the daughter's age is x. According to the information provided, the man's age would be 3x, as he is 3 times as old as his daughter.
Their total age is given as 40 years, so we can write the equation:
x + 3x = 40
Combining like terms, we get:
4x = 40
Dividing both sides of the equation by 4, we find:
x = 10
Therefore, the daughter is 10 years old, and the man is 3 * 10 = <<3*10=30>>30 years old.
A man is 3 times as old as his daughter. Their total age is 40 years. What are their ages?
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