The sum of two numbers is 20 and the sum of their squares is 140. Find the product of the two numbers.	Choose the correct choice from the following answers
A) 130	B) 140	C) 120	D) 145	E) 150
Let a and b be the two numbers
(a+b)^2=a^2+2ab+b^2
Given (a+b)=20 a^2+b^2=140
So, 20^2=140+2ab
2ab=400-140
2ab=260
ab=130
130ns 130
<result>A</result>
The sum of two numbers is 20 and the sum of their squares is 140. Find the product of the two numbers.