The product of two numbers is 168 and the sum of their squares is 289. The sum of the number is?	Pick one
A) A)23
B) B)25
C) C)27
D) D)31
E) E)35
Let the numbers be x and y.   Then, xy = 168 and x2 + y2 = 289.   (x + y)2 = x2 + y2 + 2xy = 289 + (2 x 168) = 625   x + y = 25.   Option 25
<result>B</result>
The product of two numbers is 168 and the sum of their squares is 289. The sum of the number is?