The sum of the squares of 3 natural numbers is 1029, and they are in the proportion 1 : 2 : 4. The difference between greatestÂ number and smallest number is:_x005F_x000D_

The sum of the squares of 3 natural numbers is 1029, and they are in t

1.	The sum of the squares of 3 natural numbers is 1029, and they are in the proportion 1 : 2 : 4. The difference between greatestÂ number and smallest number is:_x005F_x000D_
A.	15
B.	21
C.	31
D.	18
Answer» C. 31