[Solved] A grandfather and his grandson have the same birthday date. For six consecutive birthdays the grandfather was a multiple of the grandson’s age. How old were each at their sixth consecutive birthday?

This riddle has been around for some time on internet platforms such as Instagram, Facebook, and WhatsApp, and many people still argue over what the answer might be, as there are many possibilities. The correct answer is Grandfather was 66 and grandson was 6. When grandfather was 61, granson was 1 (61 = 1 x 61) When grandfather was 62, granson was 2 (62 = 2 x 31) When grandfather was 63, granson was 3 (63 = 3 x 21) When grandfather was 64, granson was 4 (64 = 4 x 16) When grandfather was 65, granson was 5 (65 = 5 x 13) When grandfather was 66, granson was 6 (66 = 6 x 11)