Re: If a, b, and c are positive

I think the answer should be A since statement1 is enough by itself.

Lets consider statement 1

a^2+c^2=202 given in the question
b^2+c^2=225 given in the statement1

(b^2+c^2)-(a^2+c^2)=23

b^2-a^2=(b-a)*(b+a)=23 b+a must be 23 and b-a must be 1 since a,b,c given positive and 23 is prime number. b=12 and a=11

if we know a and b then we could calculate c by using a^2+c^2=202.

Could you please elaborate?

Many thanks,