Let's use the reverse process. Assume p is Mr.Perez's age and d is his daughter's age. Because there are two people's ages combined, we multiply 15 by 2, =30. 86-30 = 56.The ratio p:d is 3:1, 3+1 = 4, and 56/4 = 14. 14*3 gives us 42.

To check, 42/3 = 14, 42+14+15+15=56+30=86.

Mr.Perez is 42 now, and his daughter is14 now. If you have any questions, don't hesitate to ask. :)