Let x be the daughter age. Then the mother's age is (x+36) uears. From the condition, you have this equation= . Cross multiply; then simplify 15*(x+36) = 24x 15x + 15*36 = 24x 15*36 = 24x - 15x 15*36 = 9x x = = 15*4 = 60. ANSWER. The daughter is 60 years old. The mother is 60+36 = 96 years old.