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How many  numbers greater than 20000 can be formed by using the digits 0,1,2,3,4 if if no digit is repeated

4! = 4*3*2! = 12
2!       2!                                      12 numbers greater than 20000 can be formed using digits 0,1,2,3,4
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How many numbers greater than 20000 can be formed by using the digits ,0,1,2,3,4, no digit being repeated in any number.
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Since no digit is to be repeated ten thousands place can be fill up by 3 options (2,3,4)as these digits can form number greater than 20000.Now one digit is used so we have 4 options for thousands place. 3 for hundreds place.2 for tens place and 1 for ones place therefore by fundamental principle of counting 3×4×32×1= 72
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Guys the correct way is 3×4×3×2×1= 72
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