There are 20 balls which are red,blue and green .if 7 balls are green and the sum of red balls and green balls 13,at most how many red balls there?

• ans 6
  r+b+g=20
  g=7
  r+g=13
  r+7=13
  r=13-7
  r=6
• 11 years agoHelpfull: Yes(17) No(10)
• Friends ans will be 5...there is something error in que ...r+g
• 11 years agoHelpfull: Yes(16) No(0)
• this question is in the campus commune and it is posted wrong here,,,.. it is sum is less than 13 so the nswer will be 5..
• 11 years agoHelpfull: Yes(9) No(0)
• ans is 5 because 13> so 7+5=12
• 11 years agoHelpfull: Yes(5) No(0)
• then 6+7=13 but the condition is less than 13 so 5 is ans
• 11 years agoHelpfull: Yes(5) No(1)
• five is the answer
• 11 years agoHelpfull: Yes(3) No(0)
• 20balls
  red, blue, green
  7 green
  13 left
  all balls to be there
  therefore, out of 13 max no of balls of red can be 12...
  ans 12
  
• 11 years agoHelpfull: Yes(2) No(7)
• 7 balls = green
  r+g=13
  r=6
• 11 years agoHelpfull: Yes(0) No(1)
• r+b+g = 20
  r+g=13
  13+b=20
  ans 6
• 11 years agoHelpfull: Yes(0) No(2)
• G=7
  R+G+B=20
  R+G=13
  R+7=13
  R=6
• 11 years agoHelpfull: Yes(0) No(1)
• total no of balls=20
  no of green balls=7
  sum of red and green balls=13
  red balls=(13-no of green balls)
  =(13-7)
  =6
• 11 years agoHelpfull: Yes(0) No(1)
• answer is 6............
• 11 years agoHelpfull: Yes(0) No(1)
• how 5 if ans is 5...can any body explain???
  
• 11 years agoHelpfull: Yes(0) No(0)
• red ball=5 if R+G
• 11 years agoHelpfull: Yes(0) No(0)
• total=20, green=7, red+green=13, thrfor red balls= 13-7=6.. bt how 5 will be the ans,, plz explain
• 11 years agoHelpfull: Yes(0) No(0)
• given R+B+G=20...
  G=7..
  R+B=13
  NOW WE MAKE COMBINATION...
  R+B
  1+12=13
  2+11=13
  3+10=13
  4+9=13
  5+8=13
  NOW THE CONDITION IS R+G
• 11 years agoHelpfull: Yes(0) No(0)
• G+R
• 11 years agoHelpfull: Yes(0) No(0)
• R+G+B=20,
  G=7,
  R+G=13,
  R=6,
  B=7.....Therefore red=6 hoinga.
• 11 years agoHelpfull: Yes(0) No(2)