Digits

How many natural numbers greater than 4000 are formed from the numbers 0,1,3,7,9 with the figures not repeated,

B) How many natural numbers will be less than 4000, and can the numbers be repeated?

Final Answer:

a =  144
b =  375

Step-by-step explanation:

a=2 4 3 2+4 4 3 2 1=144
b=5+4 5+4 5 5+2 5 5 5=375



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You need to know the following knowledge to solve this word math problem:

combinatoricsbasic operations and conceptsnumbersGrade of the word problem

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