If the sum of two numbers is 24 and the sum of their squares is 404, then the product of the numbers is	Pick
A) 40
B) 44
C) 80
D) 86
E) 90
Sol.   Let the numbers be x and y.   Then, (x+y) = 24 and x2 + y2 = 404.   Now, 2xy = (x+y)2 - (x2 + y2)   = (24)2 - 404 = 576- 404= 
<gadget id="calculator">576- 404</gadget>
<output>172</output>
172   xy= 86.   Answer 86
<result>D</result>
If the sum of two numbers is 24 and the sum of their squares is 404, then the product of the numbers is