The results of development are shown in the first table of the solution. For example, the projected third party personal injury costs for accident year 2009 are £67k. This is found by taking the reported incurred claims of £20k for accident year 2009 given in the question and dividing by 0.3 (because they are 30% developed according to the development table in the question).
Hope this helps. Good luck.
Last edited: Sep 22, 2011