there are 20 balls which are red,blue,or green.If 7 balls are green and the sum of red balls and green balls is less than 13, at most how may red balls are ?
a)5 b)6 c)7 d)4

• there are total 20 balls
  7 balls are green
  and sum of both less than 13
  so red ball can be atleast 1 or atmost can be 5
  7 green,5 red
  then sum will less than 13
  so a)5 is right answer(ans)
• 11 years agoHelpfull: Yes(58) No(9)
• ANSWER:: a)5
  green ball =7
  g + r < 13
  so red is 1 or 2 or 3 or 4 or 5
  For atmost red ball take red =5
  so there are atmost 5 red ball
• 11 years agoHelpfull: Yes(31) No(2)
• MADUSUDAN 4 can also b ans but they said at the most means we take max answer
• 11 years agoHelpfull: Yes(5) No(7)
• Given R + B + G = 17; G = 7; and R + G < 13. Substituting G = 7 in the last equation, We get R < 6. So maximum value of R = 6
  
• 9 years agoHelpfull: Yes(5) No(7)
• there are total 20 balls
  7 balls are green
  and sum of both less than 13
  so red ball can be atleast 1 or atmost can be 5
  7 green,5 red
  then sum will less than 13
  so a)5 is right answer.
• 8 years agoHelpfull: Yes(5) No(0)
• Prag 4 can also be the answer know
• 11 years agoHelpfull: Yes(3) No(6)
• r+7
• 11 years agoHelpfull: Yes(2) No(4)
• green bal =7,sum of green and red ball is less than 13 .there are 5 is the ans
• 7 years agoHelpfull: Yes(1) No(0)
• 5 is the write answer because here ask for summation of red and gree balls less than 13 there for
  r+g=13
  g=7
  r+7=13
  if we put r=6 then its value equals to 13 thats not true so at most value of red ball is 5
• 7 years agoHelpfull: Yes(1) No(0)
• Given R + B + G = 17; G = 7; and R + G < 13. Substituting G = 7 in the last equation, We get R < 6. So maximum value of R = 6
• 5 years agoHelpfull: Yes(1) No(0)
• 7+x
• 11 years agoHelpfull: Yes(0) No(10)
• red+green
• 11 years agoHelpfull: Yes(0) No(5)
• 6...because R+G+B=20,G=7,R+G
• 8 years agoHelpfull: Yes(0) No(0)
• g + r < 13
  
  7 + r < 13
  
  r < 13 - 7
  r < 6
  
  at most 6 red balls
• 8 years agoHelpfull: Yes(0) No(3)
• option (a) is the right answer
  because, green ball=7 and red+green=
• 7 years agoHelpfull: Yes(0) No(0)
• if r=5
  7+r
• 7 years agoHelpfull: Yes(0) No(0)
• There are 20 balls which are red, blue or green. If 7 balls are green and the sum of red balls and green balls is less than 13, at most how many red balls are there?
• 5 years agoHelpfull: Yes(0) No(1)