On 2007, What was the date of last Saturday in May month?

1 - May - 2007
$$\eqalign{ & = \frac{{1 + 2 + 7 + 1 + 6}}{7} \cr & = \frac{{17}}{7} \cr & = 3 \cr & = {\text{Tuesday}} \cr} $$
= May 1^st → Tuesday + 5 days = Saturday = 5^th may
5^th may + 7 days = Saturday = 12^th may
12^th may + 7 days = Saturday = 19^th may
19^th may + 7 days = Saturday = 26^th may
= Answer = 26^th may