The number of 6-digit even numbers that can be made from the number 214635 are:

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The number of 6-digit even numbers that can be made from the number 214635 are:  a) 18 b) 72  c) 120 d) 360 Answer:  D from the question we can see we have to form 6 digit number(no repetition) so, let us six blanks as show below : _ _ _ _ _ _  if the number has to be even it has to be end with even number. 214635   from the above digits even numbers are 2,4,6 so, the units digit is 2 or 4 or 6 so, the no.of.ways is 3 remaining 5 digits can be filled with 5! ways  so, the answer is 5!x3 ways                             = 360 ways  remaini
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Python program to check whether the PIN entered by the user is four digit number or not

 


Algorithm 

Step 1 : start

Step 2: declare a string 

Step 3: return the length of list by using len function 

Step 4 : check the len == 4 then print " user has entered four digit pin " if not print " invalid number of digits " 

Program : 

pin = input(" enter the pin : " )

i = len(pin) 

if  i == 4:

  print("user has entered four digit pin ")

else:

  print(" invalid number of digits")



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