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?
a..4 b.. 5 c… 6 d…..7

Question

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?
a..4         b.. 5         c… 6          d…..7

anonymous · Answer

c

anonymous · Answer

At most the sum of red and green is 13..If the green balls are 7, then there can be a maximum of 6 red balls

anonymous · Answer

ya i am also thinking dt its should be c

anonymous · Answer

ok thanx for ans

raden · Answer

R+G < 13
R + 7 < 13
R < 6
so, the maximum red balls are 5

anonymous · Answer

welcome : )

anonymous · Answer

@RadEn is right..the sum is LESS THAN 13..i took it as less than or equal to...So, the answer is b.5

anonymous · Answer

its not less than or equal to....its only less than ,,,, so dont get confused

anonymous · Answer

Okay..now the answer is 5...

anonymous · Answer

yes @RadEn is correct