The sum of the squares of two no is 12 and their sum is 15.Find the product of the two no?

• Using the formula,(x+y)^2 = x^2+y^2+2xy,we get xy = 213/2= 106.5
• 13 years agoHelpfull: Yes(17) No(0)
• (x+y)^2=x^2 + y^2 +2*x*y
  15^2=12+ 2xy
  225-12=2xy
  213/2=xy
  xy=106.5
• 13 years agoHelpfull: Yes(9) No(1)
• it would be better gopi for you to don't appear for aptitudes..
  
  get practices in maths, logic and all relative subjects on m4maths.com and then ask the question...
• 13 years agoHelpfull: Yes(1) No(14)