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.
While sweet potatoes do contain sugar, they also contain beneficial elements that are complimentary to your health and body. The sugar content in sweet potatoes is 4.2 grams for every 3.5 ounces of sweet potatoes that you ingest. While not terribly high or alarming, this confirms the presence of sugar just the same in sweet potatoes. As with all things, excess is bad, and this applies also to your sugar intake.