Three mischievous old

Three mischievous old Grannies were sitting on a bench outside a nursing home. When an old Grandpa walked by. And one of the old Grandmas yelled out saying, “We bet we can tell exactly how old you are. ”The old man said, “There is no way you can guess it, you old fools.”

One of the old Grandmas said, “Sure we can! Just drop your pants and under shorts and we can tell your exact age…” Embarrassed just a little, but anxious to prove they couldn’t do it, he dropped his drawers. The Grandmas asked him to first turn around a couple of times and to jump up and down several times.