Rajan is a name of Hindu / Indian origin, and is commonly used for males.
According to the Food Network, 1/3 to 1/2 pound of potatoes should be allocated per person when preparing mashed potatoes. When serving roasted potatoes, 2 1/2 pounds of potatoes should be allocated per person.
By the USDA method, a medium-sized regular (white) potato is generally heavier than its rival and weighs in at 173 grams compared to just 114 grams for a medium-sized sweet potato. This, then, skews all their numbers.