Solved papers for JEE Main & Advanced JEE Main Paper (Held On 11 April 2015)

done JEE Main Paper (Held On 11 April 2015) Total Questions - 2

• question_answer1) Let \[A=\{{{x}_{1}},{{x}_{2}},...,{{x}_{7}}\}\]and \[B=\{{{y}_{1}},{{y}_{2}},{{y}_{3}}\}\]be two sets containing seven and three distinct elements respectively. Then the total number of functions\[f:A\to B\] that are onto, if there exist exactly three elements x in A such that\[f(x)={{y}_{2}},\] is equal to : [JEE Main Online Paper (Held On 11 April 2015)]  
  A)
  \[14.{{\,}^{7}}{{C}_{2}}\]
  done clear
  B)
  \[16.{{\,}^{7}}{{C}_{3}}\]
  done clear
  C)
  \[12.{{\,}^{7}}{{C}_{2}}\]
  done clear
  D)
  \[14.{{\,}^{7}}{{C}_{3}}\]
  done clear
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• question_answer2) If in a regular polygon the number of diagonals is 54, then the number of sides of this polygon is : [JEE Main Online Paper (Held On 11 April 2015)]  
  A)
   10
  done clear
  B)
   12
  done clear
  C)
   9
  done clear
  D)
   6
  done clear
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