Maths-
General
Easy

Question

A = (1,2,3,4,5), B = (1,2,3,4) and f colon A @ B is a function. Then

  1. number of onto functions if n(f(A))=4 is 240    
  2. number of onto functions if n(f(A))=3 is 600    
  3. number of onto functions if n(f(A))=2 is 180    
  4. number of onto functions if n(f(A))=1 is 5    

The correct answer is: number of onto functions if n(f(A))=4 is 240


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