maths
posted by sushma .
a teen age boy wrote his own age after his father's from this new four place he subtracted the absolute value of the difference of their ages bto get 4289 the sum of their ages was

Since the son's age is between 13 and 19, the father must be 43, so that if the son's age is x,
4300 + x – (43 – x) = 4289, so 2x = 32 and x = 16. So the sum of their ages is 43 + 16 = 59.