<prompt> In calculating Dependency Ratio, the numerator is expressed as -Population under 10 years and 60 and abovePopulation under 15 years and 60 and abovePopulation under 10 years and 65 and abovePopulation under 15 years and 65 and above  <response>: Dependency ratio The proportion of persons above 65 years of age and children below 15 years of age are considered to be dependent on the economically productive age group 15-64 years.The ratio of combined age group 0-14 years plus 65 years and above to the 15-65 years age group is known as total dependency ratio.Total dependency ratio Age group 0-14 yrs age group above 65 yrs Age group between 15-65 yrsIt is also referred to as the societal dependency ratio and reflects the need for a society to provide for their younger and older population groups. 