Which of the following values of 'n' satisfies the in-equality n2 - 24n + 143 < 0?
1) n < 11
2) n > 13
3) 11 < n < 13
4) 11 > n > 13
5) None of these

• 3) 11 < n < 13
  
  n^2 - 24n + 143 < 0
  => (n-11)(n-13) < 0
  => 11 < n < 13
• 10 years agoHelpfull: Yes(37) No(1)
• In the equation if we put 11 or 13 then we get exact zero which is not less than zero. put 12 resulting -1 which is less than zero hence the answer is option 3,
  11
• 10 years agoHelpfull: Yes(4) No(1)
• option 3
  11 < n
• 10 years agoHelpfull: Yes(0) No(1)
• 4) 11
• 10 years agoHelpfull: Yes(0) No(2)
• n^2 - 24n + 143
• 10 years agoHelpfull: Yes(0) No(0)
• 3)11
• 10 years agoHelpfull: Yes(0) No(0)
• opt 3 it consider 12 we get -1
• 10 years agoHelpfull: Yes(0) No(0)
• (n-11)(n-13)
• 9 years agoHelpfull: Yes(0) No(0)