If there are 20 red, green, blue balls.number of red balls are 7 and the sum of the blue green balls is less than 13. At most how
many green balls are there
a.5 b.6 c.7 d.4

• if red balls are 7 then green+blue must be equals to 13
• 12 years agoHelpfull: Yes(12) No(1)
• r u sure the question is correct? if sum of blue and green is less than 13 than red must be greater in number or sum of other two must be some thing other if want to make it 20.
• 12 years agoHelpfull: Yes(9) No(3)
• there are total 20 balls
  7 balls are red
  and sum of both less than 13
  so green ball can be atleast 1 or atmost can be 5
  5 green,7 red
  then sum will less than 13
  so a)5 is right answer(ans
  
• 12 years agoHelpfull: Yes(5) No(2)
• it is not a correct question because sum of blue,green bulbs must be equal to 13.
• 12 years agoHelpfull: Yes(2) No(2)