If 5×nP3=4×n+1P3 find n?

A.

10

B.

12

C.

11

D.

14

• Answer is option D=14
  Go with an option:
  Take option D
  Take left hand side equation first and sub value for n as 14
  14P3=2184
  2184*5=10920----->1
  Take right hand side now and substitute value for n as 14
  
  n+1P3=14+1P3=15P3=2730
  2730*4=10920------->2
  
  1=2 so ans is 14
• 8 years agoHelpfull: Yes(0) No(0)