Bob has 4,000 grams of sand. If his brother has one kilogram more than Bob, how many kilograms of sand does Bob's brother have?

Answer 1

One kilogram is equal to 1,000 grams. So if Bob has 4,000 grams, his brother has 4,000 + 1,000 = <<4000+1000=5000>>5,000 grams.
Thus, Bob's brother has 5,000/1,000 = <<5000/1000=5>>5 kilograms of sand. Answer: \boxed{5}.