arithmetic - the ratio of the ages of kusuma to that of her daughter is 73 today after 5 years this ratio would be 21 how many years old should kusuma be at the time of birth of her daughter - skillgun

Let the ages of Kusuma and her daughter today be “7x” and “3x” years respectively.
Thus, 5 years, hence, we get,
=> (7x + 5)/(3x + 5) = 2/1
=> x = 5
Thus, the age of Kusuma today is 35 years and that of her daughter’s today is 15 years, Hence, at the time of birth of her daughter, Kusuma should have been (35 - 15) = 20 years old.