1, 6, 9 are figures which are half shaded by slanting lines. 2, 4, 7 are all divided into equal parts (either three or four parts) by straight lines and also have a black circle at the centre. 3, 5, 8 have similar designs and have their four corners shaded black.
Jeremy is 26 years younger than his father. Eight years hence his father's age will be two years less than twice his age. What is Jeremy's present age?