The sum of a number and three times another number is 18. Find the numbers if their product is a maximum. Please Help :)

• Let two no be x n y
  x+3y=18
  
  CASES : 0+3(6)=18, product os no 0*6 =0, same way below
  3+3(5),15
  6+3(4),24
  9+3(3),27
  12+3(2),24
  15+3(1),15
  18+3(0),0 it is said product max , for 9,3 pro is mac
  Numbers 9,3
• 10 years agoHelpfull: Yes(0) No(0)