1.   Farr calculated the contribution of workers to economic growth by estimating the future net earnings of labourers dying at different ages.

2.   If one is to study the aging process, one would presumably want to examine persons from different age groupings.

3.   In schoolboy moto-cross, there are six different classes, all different ages and all on different sized machinery.

4.   People of different ages expend different amounts of energy.

5.   Similarly, increased odds ratios were found for different age strata.

6.   The differences among the trilobites of different ages can be used by paleontologists to date these rocks.

7.   The research shows that kids are uniquely vulnerable at different ages.

8.   The study included women of different ages, races and so forth.

9.   There will be races for both men and women, as well as for a variety of different age categories.

10.   Bringing people of different ages and social status together may help you think in new ways.